Re: [Hol-info] Inquiry: Introducing new types as predicates

2018-01-29 Thread Mario Xerxes Castelán Castro
On 27/01/18 23:04, Cris Perdue wrote: > Well no. If a person has neither special preparation nor interest, I would > not wish to bother them. If you are willing to take a request from me, please do not use “they” as singular. In English, “he” is the canonical generic singular. Although “they” has

Re: [Hol-info] Inquiry: Introducing new types as predicates

2018-01-24 Thread Cris Perdue
Dear Mario, Thank you for your thoughtful, detailed, and even rather delightful response. I'll respond to your email in a block here, in hopes of better continuity in my reply. Yes, I really am interested in extending a simple system of higher-order logic with new predicates for new "datatypes"

Re: [Hol-info] Inquiry: Introducing new types as predicates

2018-01-23 Thread Mario Castelán Castro
On 22/01/18 18:35, Cris Perdue wrote: > Are any of you readers of this list aware of investigations or > implementations of logics that, like the HOL family of provers, are based > on the simple theory of types, but which support introduction of new types > through new predicates rather than new

Re: [Hol-info] Inquiry: Introducing new types as predicates

2018-01-22 Thread Cris Perdue
t; > > > > *From: *Cris Perdue <c...@perdues.com> > *Date: *Tuesday, 23 January 2018 at 11:36 > *To: *hol-info <hol-info@lists.sourceforge.net> > *Subject: *[Hol-info] Inquiry: Introducing new types as predicates > > > > Are any of you readers

Re: [Hol-info] Inquiry: Introducing new types as predicates

2018-01-22 Thread Michael.Norrish
offered by PVS? Michael From: Cris Perdue <c...@perdues.com> Date: Tuesday, 23 January 2018 at 11:36 To: hol-info <hol-info@lists.sourceforge.net> Subject: [Hol-info] Inquiry: Introducing new types as predicates Are any of you readers of this list aware of investigations or imp

[Hol-info] Inquiry: Introducing new types as predicates

2018-01-22 Thread Cris Perdue
Are any of you readers of this list aware of investigations or implementations of logics that, like the HOL family of provers, are based on the simple theory of types, but which support introduction of new types through new predicates rather than new type constants? Presumably numbers then could