| Sun, 10 Oct 2010 16:34:20 +0200 | nipkow | simplified proof | file | diff | annotate |
| Mon, 04 Oct 2010 14:46:48 +0200 | haftmann | turned distinct and sorted into inductive predicates: yields nice induction principles for free; more elegant proofs | file | diff | annotate |
| Mon, 13 Sep 2010 11:13:15 +0200 | nipkow | renamed lemmas: ext_iff -> fun_eq_iff, set_ext_iff -> set_eq_iff, set_ext -> set_eqI | file | diff | annotate |