| Sat, 16 May 2009 11:28:02 +0200 | nipkow | "{x. P x & x=t & Q x}" is now rewritten to "if P t & Q t then {t} else {}" | file | diff | annotate |
| Wed, 04 Mar 2009 10:47:20 +0100 | nipkow | Made Option a separate theory and renamed option_map to Option.map | file | diff | annotate |