| Sat, 24 Dec 2011 15:53:10 +0100 | haftmann | adjusted to set/pred distinction by means of type constructor `set` | file | diff | annotate |
| Fri, 25 Nov 2011 13:14:58 +0100 | wenzelm | proper intro? declarations -- NB: elim? indexes on major premise, which is too flexible here and easily leads to inefficiences (cf. a0336f8b6558); | file | diff | annotate |