Re: [Hol-info] Share list of terms with later theories
A related question: some time back I was looking at how datatypes are constructed, and found stuff in theory ind_type, and theorems like list_TY_DEF (which one finds by doing find "ty_def") But it seems that there are also theorems created which define the constructors of the list datatype in terms of ind_type$CONSTR, ind_type$BOTTOM, ind_type$FCONS, etc, but that these theorems are very well hidden. I intended to investigate more to find how these theorems are hidden, and where if possible to find them, but never got back to it. Can anyone help me on that question? And is it relevant to this current discussion? Cheers, Jeremy On 01/17/2018 10:28 AM, michael.norr...@data61.csiro.au wrote: If people wanting to store these “uninteresting” theorems are happy to wrap and unwrap the OMITs, this would be one approach. I had been thinking of adding a save_private_thm(name, privatedbname, thm) entrypoint to Theory.sml. You’d want multiple possible “private dbs”, so there would be an entry-point along the lines of get_private_db : string -> (string,thm) Binarymap.dict Every time a theory was loaded, this private_db would change, so in many applications it might not be appropriate to store the result of get_private_db “cakeml/translator” but to instead write val th = Binarymap.peek(get_private_db “cakeml/translator”, “theorem-name”) Michael On 16/1/18, 18:35, "Magnus Myreen"wrote: Hi all, How about defining: OMIT x = x in markerScript.sml and making it print as ... and adjust HOL so that a theorem with a top-level OMIT does not show up in DB searches. Cheers, Magnus On 12 January 2018 at 00:00, wrote: > I was thinking along these lines, yeah. Such theorems could also be stopped from appearing in the Theory.sig file. > > Michael > > On 12/1/18, 07:31, "Konrad Slind" wrote: > > Theorems that need to persist between sessions are most easily stored by name > in theories. Maybe some kind of PolyML database magic could also be > used, I don't > know. As far as DB searches, it wouldn't be hard to implement a > refined DB search > mechanism that first discarded all theorems that met some kind of > naming convention > (e.g., those starting with an underscore or something like that) and > then did the usual > search (which can be on name fragment or pattern). > > Konrad. > > > On Wed, Jan 10, 2018 at 7:09 PM, Magnus Myreen wrote: > > Ah, I didn't realise this existed. Thanks for the pointers! > > > > How does storing of theorems work in this setting? One can't construct > > a theorem from a string in a decode function. > > > > I guess the string could refer to a theorem name that's stored in the > > theory, but this is a bit inconvenient because some of the theorems in > > the translator's state are currently not stored in the theory (other > > than in the automatically produced theorem that is an encoding of the > > entire state). I guess an encode function could invent an unused name > > and store the theorem while it's producing the encoding. This can lead > > to some strange things turning up in DB searches (as is the case with > > the current approach). > > > > Cheers, > > Magnus > > > > > > On 11 January 2018 at 11:24, wrote: > >> That level of generality is already possible, and has always been a desideratum for the design. (The grammar update information stored is about that complicated for example; consider the types that occur in a call to add_rule.) > >> > >> The painful part is that you have to write functions to encode and decode the types into and out of strings (because these strings are written into the theory files). There are functions for doing basic SML types in src/parse/Coding, and the handling of terms is handled by writing functions that take functions for doing this as parameters. See the bottom of src/parse/term_grammar for the encoding and decoding, and src/parse/GrammarDeltas for the way this is put together for the grammar example. > >> > >> You can see the fundamental building blocks at the LoadableThyData structure in src/postkernel/Theory. > >> > >> Certainly, providing a method for going through a generic s-expression type might be easiest for users to understand, so perhaps I can build that as well as term lists. > >> > >> Michael > >> > >> On 11/1/18, 11:08, "Magnus Myreen"
Re: [Hol-info] Share list of terms with later theories
If people wanting to store these “uninteresting” theorems are happy to wrap and unwrap the OMITs, this would be one approach. I had been thinking of adding a save_private_thm(name, privatedbname, thm) entrypoint to Theory.sml. You’d want multiple possible “private dbs”, so there would be an entry-point along the lines of get_private_db : string -> (string,thm) Binarymap.dict Every time a theory was loaded, this private_db would change, so in many applications it might not be appropriate to store the result of get_private_db “cakeml/translator” but to instead write val th = Binarymap.peek(get_private_db “cakeml/translator”, “theorem-name”) Michael On 16/1/18, 18:35, "Magnus Myreen"wrote: Hi all, How about defining: OMIT x = x in markerScript.sml and making it print as ... and adjust HOL so that a theorem with a top-level OMIT does not show up in DB searches. Cheers, Magnus On 12 January 2018 at 00:00, wrote: > I was thinking along these lines, yeah. Such theorems could also be stopped from appearing in the Theory.sig file. > > Michael > > On 12/1/18, 07:31, "Konrad Slind" wrote: > > Theorems that need to persist between sessions are most easily stored by name > in theories. Maybe some kind of PolyML database magic could also be > used, I don't > know. As far as DB searches, it wouldn't be hard to implement a > refined DB search > mechanism that first discarded all theorems that met some kind of > naming convention > (e.g., those starting with an underscore or something like that) and > then did the usual > search (which can be on name fragment or pattern). > > Konrad. > > > On Wed, Jan 10, 2018 at 7:09 PM, Magnus Myreen wrote: > > Ah, I didn't realise this existed. Thanks for the pointers! > > > > How does storing of theorems work in this setting? One can't construct > > a theorem from a string in a decode function. > > > > I guess the string could refer to a theorem name that's stored in the > > theory, but this is a bit inconvenient because some of the theorems in > > the translator's state are currently not stored in the theory (other > > than in the automatically produced theorem that is an encoding of the > > entire state). I guess an encode function could invent an unused name > > and store the theorem while it's producing the encoding. This can lead > > to some strange things turning up in DB searches (as is the case with > > the current approach). > > > > Cheers, > > Magnus > > > > > > On 11 January 2018 at 11:24, wrote: > >> That level of generality is already possible, and has always been a desideratum for the design. (The grammar update information stored is about that complicated for example; consider the types that occur in a call to add_rule.) > >> > >> The painful part is that you have to write functions to encode and decode the types into and out of strings (because these strings are written into the theory files). There are functions for doing basic SML types in src/parse/Coding, and the handling of terms is handled by writing functions that take functions for doing this as parameters. See the bottom of src/parse/term_grammar for the encoding and decoding, and src/parse/GrammarDeltas for the way this is put together for the grammar example. > >> > >> You can see the fundamental building blocks at the LoadableThyData structure in src/postkernel/Theory. > >> > >> Certainly, providing a method for going through a generic s-expression type might be easiest for users to understand, so perhaps I can build that as well as term lists. > >> > >> Michael > >> > >> On 11/1/18, 11:08, "Magnus Myreen" wrote: > >> > >> Hi Michael, > >> > >> I see that you are considering to add a TermSetData feature. Could you > >> please add something more general? I'd appreciate a feature that can > >> store the CakeML translator's state in theories. Currently, the CakeML > >> translator stores its state in a single theorem so that the other > >> theories can load the state and continue from previous states. > >> > >> As far as I can tell, the ThmSetData machinery (and probably the > >> TermSetData equivalent) won't help with the translator. The reason is > >> that the translator's state is a collection of lists of list of tuples > >>
Re: [Hol-info] Share list of terms with later theories
Hi all, How about defining: OMIT x = x in markerScript.sml and making it print as ... and adjust HOL so that a theorem with a top-level OMIT does not show up in DB searches. Cheers, Magnus On 12 January 2018 at 00:00,wrote: > I was thinking along these lines, yeah. Such theorems could also be stopped > from appearing in the Theory.sig file. > > Michael > > On 12/1/18, 07:31, "Konrad Slind" wrote: > > Theorems that need to persist between sessions are most easily stored by > name > in theories. Maybe some kind of PolyML database magic could also be > used, I don't > know. As far as DB searches, it wouldn't be hard to implement a > refined DB search > mechanism that first discarded all theorems that met some kind of > naming convention > (e.g., those starting with an underscore or something like that) and > then did the usual > search (which can be on name fragment or pattern). > > Konrad. > > > On Wed, Jan 10, 2018 at 7:09 PM, Magnus Myreen wrote: > > Ah, I didn't realise this existed. Thanks for the pointers! > > > > How does storing of theorems work in this setting? One can't construct > > a theorem from a string in a decode function. > > > > I guess the string could refer to a theorem name that's stored in the > > theory, but this is a bit inconvenient because some of the theorems in > > the translator's state are currently not stored in the theory (other > > than in the automatically produced theorem that is an encoding of the > > entire state). I guess an encode function could invent an unused name > > and store the theorem while it's producing the encoding. This can lead > > to some strange things turning up in DB searches (as is the case with > > the current approach). > > > > Cheers, > > Magnus > > > > > > On 11 January 2018 at 11:24, wrote: > >> That level of generality is already possible, and has always been a > desideratum for the design. (The grammar update information stored is about > that complicated for example; consider the types that occur in a call to > add_rule.) > >> > >> The painful part is that you have to write functions to encode and > decode the types into and out of strings (because these strings are written > into the theory files). There are functions for doing basic SML types in > src/parse/Coding, and the handling of terms is handled by writing functions > that take functions for doing this as parameters. See the bottom of > src/parse/term_grammar for the encoding and decoding, and > src/parse/GrammarDeltas for the way this is put together for the grammar > example. > >> > >> You can see the fundamental building blocks at the LoadableThyData > structure in src/postkernel/Theory. > >> > >> Certainly, providing a method for going through a generic s-expression > type might be easiest for users to understand, so perhaps I can build that as > well as term lists. > >> > >> Michael > >> > >> On 11/1/18, 11:08, "Magnus Myreen" wrote: > >> > >> Hi Michael, > >> > >> I see that you are considering to add a TermSetData feature. Could > you > >> please add something more general? I'd appreciate a feature that > can > >> store the CakeML translator's state in theories. Currently, the > CakeML > >> translator stores its state in a single theorem so that the other > >> theories can load the state and continue from previous states. > >> > >> As far as I can tell, the ThmSetData machinery (and probably the > >> TermSetData equivalent) won't help with the translator. The reason > is > >> that the translator's state is a collection of lists of list of > tuples > >> of combinations of strings, type, terms and theorems. > >> > >> The current approach encodes all of these structures into a single > >> unreadable theorem. This works but it seems a bit ad hoc and causes > >> huge unreadable theorems to pop up in various DB searches. > >> > >> Suggestion: could we have a way to store a s-expression-like data > into > >> theories? If the s-expressions would allow strings, types, terms, > >> theorems and, of course, pairs/lists of s-expressions, then I think > >> the translator's state could very naturally be stored in theories. > >> > >> Cheers, > >> Magnus > >> > >> > There is generic machinery for adding values of various forms to > theories so > >> > that future theories and ML code can see them. The smoothest > instantiation > >> > is in ThmSetData (in src/1) which allows storage of sets of > theorems in a > >> > “2D matrix” indexed by theory-name and
Re: [Hol-info] Share list of terms with later theories
I was thinking along these lines, yeah. Such theorems could also be stopped from appearing in the Theory.sig file. Michael On 12/1/18, 07:31, "Konrad Slind"wrote: Theorems that need to persist between sessions are most easily stored by name in theories. Maybe some kind of PolyML database magic could also be used, I don't know. As far as DB searches, it wouldn't be hard to implement a refined DB search mechanism that first discarded all theorems that met some kind of naming convention (e.g., those starting with an underscore or something like that) and then did the usual search (which can be on name fragment or pattern). Konrad. On Wed, Jan 10, 2018 at 7:09 PM, Magnus Myreen wrote: > Ah, I didn't realise this existed. Thanks for the pointers! > > How does storing of theorems work in this setting? One can't construct > a theorem from a string in a decode function. > > I guess the string could refer to a theorem name that's stored in the > theory, but this is a bit inconvenient because some of the theorems in > the translator's state are currently not stored in the theory (other > than in the automatically produced theorem that is an encoding of the > entire state). I guess an encode function could invent an unused name > and store the theorem while it's producing the encoding. This can lead > to some strange things turning up in DB searches (as is the case with > the current approach). > > Cheers, > Magnus > > > On 11 January 2018 at 11:24, wrote: >> That level of generality is already possible, and has always been a desideratum for the design. (The grammar update information stored is about that complicated for example; consider the types that occur in a call to add_rule.) >> >> The painful part is that you have to write functions to encode and decode the types into and out of strings (because these strings are written into the theory files). There are functions for doing basic SML types in src/parse/Coding, and the handling of terms is handled by writing functions that take functions for doing this as parameters. See the bottom of src/parse/term_grammar for the encoding and decoding, and src/parse/GrammarDeltas for the way this is put together for the grammar example. >> >> You can see the fundamental building blocks at the LoadableThyData structure in src/postkernel/Theory. >> >> Certainly, providing a method for going through a generic s-expression type might be easiest for users to understand, so perhaps I can build that as well as term lists. >> >> Michael >> >> On 11/1/18, 11:08, "Magnus Myreen" wrote: >> >> Hi Michael, >> >> I see that you are considering to add a TermSetData feature. Could you >> please add something more general? I'd appreciate a feature that can >> store the CakeML translator's state in theories. Currently, the CakeML >> translator stores its state in a single theorem so that the other >> theories can load the state and continue from previous states. >> >> As far as I can tell, the ThmSetData machinery (and probably the >> TermSetData equivalent) won't help with the translator. The reason is >> that the translator's state is a collection of lists of list of tuples >> of combinations of strings, type, terms and theorems. >> >> The current approach encodes all of these structures into a single >> unreadable theorem. This works but it seems a bit ad hoc and causes >> huge unreadable theorems to pop up in various DB searches. >> >> Suggestion: could we have a way to store a s-expression-like data into >> theories? If the s-expressions would allow strings, types, terms, >> theorems and, of course, pairs/lists of s-expressions, then I think >> the translator's state could very naturally be stored in theories. >> >> Cheers, >> Magnus >> >> > There is generic machinery for adding values of various forms to theories so >> > that future theories and ML code can see them. The smoothest instantiation >> > is in ThmSetData (in src/1) which allows storage of sets of theorems in a >> > “2D matrix” indexed by theory-name and set-name. For example, the automatic >> > rewrites behind the “simp” attribute are implemented this way. >> > >> > The storage of grammar updates is handled with the same technology. >> > >> > A hacky way to store terms would be to use theorems with conclusions of the >> > form >> > >> >K T (myterm) >> > >> > and to then use ThmSetData. >> > >> > A better
Re: [Hol-info] Share list of terms with later theories
Theorems that need to persist between sessions are most easily stored by name in theories. Maybe some kind of PolyML database magic could also be used, I don't know. As far as DB searches, it wouldn't be hard to implement a refined DB search mechanism that first discarded all theorems that met some kind of naming convention (e.g., those starting with an underscore or something like that) and then did the usual search (which can be on name fragment or pattern). Konrad. On Wed, Jan 10, 2018 at 7:09 PM, Magnus Myreenwrote: > Ah, I didn't realise this existed. Thanks for the pointers! > > How does storing of theorems work in this setting? One can't construct > a theorem from a string in a decode function. > > I guess the string could refer to a theorem name that's stored in the > theory, but this is a bit inconvenient because some of the theorems in > the translator's state are currently not stored in the theory (other > than in the automatically produced theorem that is an encoding of the > entire state). I guess an encode function could invent an unused name > and store the theorem while it's producing the encoding. This can lead > to some strange things turning up in DB searches (as is the case with > the current approach). > > Cheers, > Magnus > > > On 11 January 2018 at 11:24, wrote: >> That level of generality is already possible, and has always been a >> desideratum for the design. (The grammar update information stored is about >> that complicated for example; consider the types that occur in a call to >> add_rule.) >> >> The painful part is that you have to write functions to encode and decode >> the types into and out of strings (because these strings are written into >> the theory files). There are functions for doing basic SML types in >> src/parse/Coding, and the handling of terms is handled by writing functions >> that take functions for doing this as parameters. See the bottom of >> src/parse/term_grammar for the encoding and decoding, and >> src/parse/GrammarDeltas for the way this is put together for the grammar >> example. >> >> You can see the fundamental building blocks at the LoadableThyData structure >> in src/postkernel/Theory. >> >> Certainly, providing a method for going through a generic s-expression type >> might be easiest for users to understand, so perhaps I can build that as >> well as term lists. >> >> Michael >> >> On 11/1/18, 11:08, "Magnus Myreen" wrote: >> >> Hi Michael, >> >> I see that you are considering to add a TermSetData feature. Could you >> please add something more general? I'd appreciate a feature that can >> store the CakeML translator's state in theories. Currently, the CakeML >> translator stores its state in a single theorem so that the other >> theories can load the state and continue from previous states. >> >> As far as I can tell, the ThmSetData machinery (and probably the >> TermSetData equivalent) won't help with the translator. The reason is >> that the translator's state is a collection of lists of list of tuples >> of combinations of strings, type, terms and theorems. >> >> The current approach encodes all of these structures into a single >> unreadable theorem. This works but it seems a bit ad hoc and causes >> huge unreadable theorems to pop up in various DB searches. >> >> Suggestion: could we have a way to store a s-expression-like data into >> theories? If the s-expressions would allow strings, types, terms, >> theorems and, of course, pairs/lists of s-expressions, then I think >> the translator's state could very naturally be stored in theories. >> >> Cheers, >> Magnus >> >> > There is generic machinery for adding values of various forms to >> theories so >> > that future theories and ML code can see them. The smoothest >> instantiation >> > is in ThmSetData (in src/1) which allows storage of sets of theorems >> in a >> > “2D matrix” indexed by theory-name and set-name. For example, the >> automatic >> > rewrites behind the “simp” attribute are implemented this way. >> > >> > The storage of grammar updates is handled with the same technology. >> > >> > A hacky way to store terms would be to use theorems with conclusions >> of the >> > form >> > >> >K T (myterm) >> > >> > and to then use ThmSetData. >> > >> > A better way, which, now that I’ve been prodded, I may implement soon, >> would >> > be to write a TermSetData. >> > >> > I hope this helps. I’m happy to discuss the details of this relatively >> > undocumented feature further if you want more help. >> > >> > Best wishes, >> > Michael >> > >> > On 11/1/18, 01:51, "Heiko Becker" wrote: >> > >> > Hello everyone, >> > >> > suppose I have a custom tactic that depends on
Re: [Hol-info] Share list of terms with later theories
Ah, I didn't realise this existed. Thanks for the pointers! How does storing of theorems work in this setting? One can't construct a theorem from a string in a decode function. I guess the string could refer to a theorem name that's stored in the theory, but this is a bit inconvenient because some of the theorems in the translator's state are currently not stored in the theory (other than in the automatically produced theorem that is an encoding of the entire state). I guess an encode function could invent an unused name and store the theorem while it's producing the encoding. This can lead to some strange things turning up in DB searches (as is the case with the current approach). Cheers, Magnus On 11 January 2018 at 11:24,wrote: > That level of generality is already possible, and has always been a > desideratum for the design. (The grammar update information stored is about > that complicated for example; consider the types that occur in a call to > add_rule.) > > The painful part is that you have to write functions to encode and decode the > types into and out of strings (because these strings are written into the > theory files). There are functions for doing basic SML types in > src/parse/Coding, and the handling of terms is handled by writing functions > that take functions for doing this as parameters. See the bottom of > src/parse/term_grammar for the encoding and decoding, and > src/parse/GrammarDeltas for the way this is put together for the grammar > example. > > You can see the fundamental building blocks at the LoadableThyData structure > in src/postkernel/Theory. > > Certainly, providing a method for going through a generic s-expression type > might be easiest for users to understand, so perhaps I can build that as well > as term lists. > > Michael > > On 11/1/18, 11:08, "Magnus Myreen" wrote: > > Hi Michael, > > I see that you are considering to add a TermSetData feature. Could you > please add something more general? I'd appreciate a feature that can > store the CakeML translator's state in theories. Currently, the CakeML > translator stores its state in a single theorem so that the other > theories can load the state and continue from previous states. > > As far as I can tell, the ThmSetData machinery (and probably the > TermSetData equivalent) won't help with the translator. The reason is > that the translator's state is a collection of lists of list of tuples > of combinations of strings, type, terms and theorems. > > The current approach encodes all of these structures into a single > unreadable theorem. This works but it seems a bit ad hoc and causes > huge unreadable theorems to pop up in various DB searches. > > Suggestion: could we have a way to store a s-expression-like data into > theories? If the s-expressions would allow strings, types, terms, > theorems and, of course, pairs/lists of s-expressions, then I think > the translator's state could very naturally be stored in theories. > > Cheers, > Magnus > > > There is generic machinery for adding values of various forms to > theories so > > that future theories and ML code can see them. The smoothest > instantiation > > is in ThmSetData (in src/1) which allows storage of sets of theorems in > a > > “2D matrix” indexed by theory-name and set-name. For example, the > automatic > > rewrites behind the “simp” attribute are implemented this way. > > > > The storage of grammar updates is handled with the same technology. > > > > A hacky way to store terms would be to use theorems with conclusions of > the > > form > > > >K T (myterm) > > > > and to then use ThmSetData. > > > > A better way, which, now that I’ve been prodded, I may implement soon, > would > > be to write a TermSetData. > > > > I hope this helps. I’m happy to discuss the details of this relatively > > undocumented feature further if you want more help. > > > > Best wishes, > > Michael > > > > On 11/1/18, 01:51, "Heiko Becker" wrote: > > > > Hello everyone, > > > > suppose I have a custom tactic that depends on a list of terms and I > > want to keep adding elements to the list throughout my development. > > I tried to achieve this using a :term list ref on the ML level. > However, > > it is the case that if I add some term in theory A and inspect the > list > > in theory B, where A is in the theory graph before B, all elements > added > > in A are not in the list anymore. > > > > Can someone give me a hint on why this is the case or tell me a > better > > way to "share" a list of terms from a theory with theories > depending on > > it? > > > > Cheers, > > > > Heiko > > >
Re: [Hol-info] Share list of terms with later theories
That level of generality is already possible, and has always been a desideratum for the design. (The grammar update information stored is about that complicated for example; consider the types that occur in a call to add_rule.) The painful part is that you have to write functions to encode and decode the types into and out of strings (because these strings are written into the theory files). There are functions for doing basic SML types in src/parse/Coding, and the handling of terms is handled by writing functions that take functions for doing this as parameters. See the bottom of src/parse/term_grammar for the encoding and decoding, and src/parse/GrammarDeltas for the way this is put together for the grammar example. You can see the fundamental building blocks at the LoadableThyData structure in src/postkernel/Theory. Certainly, providing a method for going through a generic s-expression type might be easiest for users to understand, so perhaps I can build that as well as term lists. Michael On 11/1/18, 11:08, "Magnus Myreen"wrote: Hi Michael, I see that you are considering to add a TermSetData feature. Could you please add something more general? I'd appreciate a feature that can store the CakeML translator's state in theories. Currently, the CakeML translator stores its state in a single theorem so that the other theories can load the state and continue from previous states. As far as I can tell, the ThmSetData machinery (and probably the TermSetData equivalent) won't help with the translator. The reason is that the translator's state is a collection of lists of list of tuples of combinations of strings, type, terms and theorems. The current approach encodes all of these structures into a single unreadable theorem. This works but it seems a bit ad hoc and causes huge unreadable theorems to pop up in various DB searches. Suggestion: could we have a way to store a s-expression-like data into theories? If the s-expressions would allow strings, types, terms, theorems and, of course, pairs/lists of s-expressions, then I think the translator's state could very naturally be stored in theories. Cheers, Magnus > There is generic machinery for adding values of various forms to theories so > that future theories and ML code can see them. The smoothest instantiation > is in ThmSetData (in src/1) which allows storage of sets of theorems in a > “2D matrix” indexed by theory-name and set-name. For example, the automatic > rewrites behind the “simp” attribute are implemented this way. > > The storage of grammar updates is handled with the same technology. > > A hacky way to store terms would be to use theorems with conclusions of the > form > >K T (myterm) > > and to then use ThmSetData. > > A better way, which, now that I’ve been prodded, I may implement soon, would > be to write a TermSetData. > > I hope this helps. I’m happy to discuss the details of this relatively > undocumented feature further if you want more help. > > Best wishes, > Michael > > On 11/1/18, 01:51, "Heiko Becker" wrote: > > Hello everyone, > > suppose I have a custom tactic that depends on a list of terms and I > want to keep adding elements to the list throughout my development. > I tried to achieve this using a :term list ref on the ML level. However, > it is the case that if I add some term in theory A and inspect the list > in theory B, where A is in the theory graph before B, all elements added > in A are not in the list anymore. > > Can someone give me a hint on why this is the case or tell me a better > way to "share" a list of terms from a theory with theories depending on > it? > > Cheers, > > Heiko > > > -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > ___ > hol-info mailing list > hol-info@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/hol-info > > > -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > ___ > hol-info mailing list > hol-info@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/hol-info > -- Check out the vibrant
[Hol-info] Share list of terms with later theories
Hi Michael, I see that you are considering to add a TermSetData feature. Could you please add something more general? I'd appreciate a feature that can store the CakeML translator's state in theories. Currently, the CakeML translator stores its state in a single theorem so that the other theories can load the state and continue from previous states. As far as I can tell, the ThmSetData machinery (and probably the TermSetData equivalent) won't help with the translator. The reason is that the translator's state is a collection of lists of list of tuples of combinations of strings, type, terms and theorems. The current approach encodes all of these structures into a single unreadable theorem. This works but it seems a bit ad hoc and causes huge unreadable theorems to pop up in various DB searches. Suggestion: could we have a way to store a s-expression-like data into theories? If the s-expressions would allow strings, types, terms, theorems and, of course, pairs/lists of s-expressions, then I think the translator's state could very naturally be stored in theories. Cheers, Magnus > There is generic machinery for adding values of various forms to theories so > that future theories and ML code can see them. The smoothest instantiation > is in ThmSetData (in src/1) which allows storage of sets of theorems in a > “2D matrix” indexed by theory-name and set-name. For example, the automatic > rewrites behind the “simp” attribute are implemented this way. > > The storage of grammar updates is handled with the same technology. > > A hacky way to store terms would be to use theorems with conclusions of the > form > >K T (myterm) > > and to then use ThmSetData. > > A better way, which, now that I’ve been prodded, I may implement soon, would > be to write a TermSetData. > > I hope this helps. I’m happy to discuss the details of this relatively > undocumented feature further if you want more help. > > Best wishes, > Michael > > On 11/1/18, 01:51, "Heiko Becker"wrote: > > Hello everyone, > > suppose I have a custom tactic that depends on a list of terms and I > want to keep adding elements to the list throughout my development. > I tried to achieve this using a :term list ref on the ML level. However, > it is the case that if I add some term in theory A and inspect the list > in theory B, where A is in the theory graph before B, all elements added > in A are not in the list anymore. > > Can someone give me a hint on why this is the case or tell me a better > way to "share" a list of terms from a theory with theories depending on > it? > > Cheers, > > Heiko > > > -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > ___ > hol-info mailing list > hol-info@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/hol-info > > > -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > ___ > hol-info mailing list > hol-info@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/hol-info > -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ hol-info mailing list hol-info@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hol-info
Re: [Hol-info] Share list of terms with later theories
There is generic machinery for adding values of various forms to theories so that future theories and ML code can see them. The smoothest instantiation is in ThmSetData (in src/1) which allows storage of sets of theorems in a “2D matrix” indexed by theory-name and set-name. For example, the automatic rewrites behind the “simp” attribute are implemented this way. The storage of grammar updates is handled with the same technology. A hacky way to store terms would be to use theorems with conclusions of the form K T (myterm) and to then use ThmSetData. A better way, which, now that I’ve been prodded, I may implement soon, would be to write a TermSetData. I hope this helps. I’m happy to discuss the details of this relatively undocumented feature further if you want more help. Best wishes, Michael On 11/1/18, 01:51, "Heiko Becker"wrote: Hello everyone, suppose I have a custom tactic that depends on a list of terms and I want to keep adding elements to the list throughout my development. I tried to achieve this using a :term list ref on the ML level. However, it is the case that if I add some term in theory A and inspect the list in theory B, where A is in the theory graph before B, all elements added in A are not in the list anymore. Can someone give me a hint on why this is the case or tell me a better way to "share" a list of terms from a theory with theories depending on it? Cheers, Heiko -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ hol-info mailing list hol-info@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hol-info -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ hol-info mailing list hol-info@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hol-info
[Hol-info] Share list of terms with later theories
Hello everyone, suppose I have a custom tactic that depends on a list of terms and I want to keep adding elements to the list throughout my development. I tried to achieve this using a :term list ref on the ML level. However, it is the case that if I add some term in theory A and inspect the list in theory B, where A is in the theory graph before B, all elements added in A are not in the list anymore. Can someone give me a hint on why this is the case or tell me a better way to "share" a list of terms from a theory with theories depending on it? Cheers, Heiko -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ hol-info mailing list hol-info@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hol-info