| Tue, 21 Jun 1994 17:20:34 +0200 | lcp | Addition of cardinals and order types, various tidying | file | diff | annotate |
| Mon, 14 Feb 1994 17:59:25 +0100 | lcp | double_complement_Un: new | file | diff | annotate |
| Tue, 21 Dec 1993 13:58:12 +0100 | lcp | new section for equality properties | file | diff | annotate |
| Fri, 10 Dec 1993 10:39:12 +0100 | lcp | ZF/equalities/SUM_eq_UN: new | file | diff | annotate |
| Fri, 03 Dec 1993 12:47:45 +0100 | lcp | New distributive laws for Sigma and UN | file | diff | annotate |
| Thu, 16 Sep 1993 12:20:38 +0200 | clasohm | Initial revision | file | diff | annotate |