Are there Hilbert-style Pure Type Systems?

Details Are there Hilbert-style Pure Type Systems? Are there Hilbert-style Pure Type Systems?

2007-07-06

arxiv.org/abs/0707.0890v2

LMCS 4 (1:1) 2008

Computer Science

Logic in Computer Science

Accepted in Logical Methods in Computer Science

Scientific paper

10.2168/LMCS-4(1:1)2008

For many a natural deduction style logic there is a Hilbert-style logic that is equivalent to it in that it has the same theorems (i.e. valid judgements with empty contexts). For intuitionistic logic, the axioms of the equivalent Hilbert-style logic can be propositions which are also known as the types of the combinators I, K and S. Hilbert-style versions of illative combinatory logic have formulations with axioms that are actual type statements for I, K and S. As pure type systems (PTSs)are, in a sense, equivalent to systems of illative combinatory logic, it might be thought that Hilbert-style PTSs (HPTSs) could be based in a similar way. This paper shows that some PTSs have very trivial equivalent HPTSs, with only the axioms as theorems and that for many PTSs no equivalent HPTS can exist. Most commonly used PTSs belong to these two classes. For some PTSs however, including lambda* and the PTS at the basis of the proof assistant Coq, there is a nontrivial equivalent HPTS, with axioms that are type statements for I, K and S.

Affiliated with

Also associated with

No associations

Rating

Are there Hilbert-style Pure Type Systems? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Are there Hilbert-style Pure Type Systems?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Are there Hilbert-style Pure Type Systems? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-89931