Re: [Hol-info] Higher order matching in HOL4

2018-04-08 Thread Mario Xerxes Castelán Castro
Hello. On 07/04/18 01:45, Thomas Tuerk wrote: > higher order matching is decidable, but has a very high complexity. (see > e.g. "An introduction to decidability of higher-order matching", Colin > Stirling, http://homepages.inf.ed.ac.uk/cps/newnewj.pdf). Higher order > unification is undecidable, b

Re: [Hol-info] Higher order matching in HOL4

2018-04-07 Thread Thomas Tuerk
Hi, higher order matching is decidable, but has a very high complexity. (see e.g. "An introduction to decidability of higher-order matching", Colin Stirling, http://homepages.inf.ed.ac.uk/cps/newnewj.pdf). Higher order unification is undecidable, but matching is decidable. As I understand it, HOL