> show_types := true; val it = (): unit > INFINITY_AX; val it = ⊢ ∃(f :ind -> ind). ONE_ONE f ∧ ¬ONTO f: thm
> Il giorno 23 lug 2018, alle ore 18:22, Dylan Melville > <dylanmelvi...@gmail.com> ha scritto: > > Is there a way to print theorems with types displayed? > >> On Jul 23, 2018, at 12:20 PM, Thomas Tuerk <tho...@tuerk-brechen.de> wrote: >> >> Hi, >> >> hard to say, why it does not work without further details. However, one >> guess is that types do not match. I would recommend showing the types when >> printing the theorem. I expect that P might be of type `'a -> bool`. In this >> case you need to instantiate 'a to string first. >> >> Best >> >> Thomas >> >> On 23.07.2018 18:10, Dylan Melville wrote: >>> I have a theorem called EX which returns true when a value is an element of >>> a list. It is defined as: >>> >>> thm = |- (EX P [] <=> F) /\ (EX P (CONS h t) <=> P h \/ EX P t) >>> >>> I am trying to use this theorem with `P` being `(\x. x = “T”)` and `t` >>> being a long list of strings which contains “T”. Unfortunately my attempts >>> to use INST on this theorem haven’t worked. Why doesn’t the following work? >>> >>> INST [`(\x:string. x = “T")`,`P:(string->bool)`] EX;; >>> >>> Thank you. >>> >>> -Dylan Melville (McMaster University) >>> >>> >>> ------------------------------------------------------------------------------ >>> 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
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