src/ZF/ex/ramsey.ML
1993-10-07 lcp 1993-10-07 used ~: for "not in"
1993-09-17 lcp 1993-09-17 Installation of new simplifier for ZF/ex. The hom_ss example in misc.ML is particularly delicate. There is a variable renaming problem in ramsey.ML/pigeon2_lemma. In some cases, rewriting by typechecking rules had to be replaced by setsolver type_auto_tac... because only the solver can instantiate variables.
1993-09-16 clasohm 1993-09-16 Initial revision