Wed, 08 Sep 1999 15:41:58 +0200 | paulson | simplification of relations involving 0, Suc and natural-number numerals | changeset | files |
Wed, 08 Sep 1999 15:41:30 +0200 | paulson | generalized the theorem zless_zero_nat to zless_nat_eq_int_zless, and | changeset | files |