| Fri, 12 Aug 1994 12:51:34 +0200 | lcp | installation of new inductive/datatype sections | file | diff | annotate |
| Tue, 26 Jul 1994 13:44:42 +0200 | lcp | Axiom of choice, cardinality results, etc. | file | diff | annotate |
| Tue, 21 Jun 1994 17:20:34 +0200 | lcp | Addition of cardinals and order types, various tidying | file | diff | annotate |
| Mon, 15 Nov 1993 14:41:25 +0100 | lcp | changed all co- and co_ to co | file | diff | annotate |
| Thu, 07 Oct 1993 10:48:16 +0100 | lcp | added ~: for "not in" | file | diff | annotate |
| Fri, 17 Sep 1993 16:16:38 +0200 | lcp | Installation of new simplifier for ZF. Deleted all congruence rules not | file | diff | annotate |
| Thu, 16 Sep 1993 12:20:38 +0200 | clasohm | Initial revision | file | diff | annotate |