4 commits

Author	SHA1	Message	Date
Floris van Doorn	e8b076e460	feat(hott/types/sigma): port large part of the sigma library from the hott library ... most importantly, prove the characterization of paths in sigma types	2014-11-22 17:44:12 -08:00
Leonardo de Moura	3cd3da5a84	refactor(library/data/prod/wf): remove duplication, and import wf's for sigma and prod	2014-11-16 21:19:10 -08:00
Leonardo de Moura	b7725c2949	feat(library/data/sigma/wf): define 'lex' for 'sigma' types and prove wf theorem	2014-11-16 20:08:52 -08:00
Leonardo de Moura	dd0b1ecdbf	refactor(library/data/sigma): break file into smaller pieces to reduce dependencies	2014-11-16 18:22:03 -08:00