Sun, 18 Aug 2013 15:29:50 +0200 haftmann explicit conversion from and to bool, and into algebraic structures with 0 and 1
Sun, 18 Aug 2013 15:29:50 +0200 haftmann some vague grouping of related theorems, with slight tuning of headings and sorting out of dubious lemmas into separate theory
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 tip