src/ZF/Cardinal_AC.thy
2002-07-09 paulson 2002-07-09 better document preparation
2002-07-02 paulson 2002-07-02 Tidying and introduction of various new theorems
2002-05-10 paulson 2002-05-10 converted the AC branch to Isar
1996-02-06 clasohm 1996-02-06 expanded tabs
1994-07-26 lcp 1994-07-26 Axiom of choice, cardinality results, etc.