Wed, 14 Jun 2000 17:47:18 +0200 | paulson | full_rename_numerals -> rename_numerals; tidied | changeset | files |
Wed, 14 Jun 2000 17:46:10 +0200 | paulson | tidied a proof using new lemmas for signs of products | changeset | files |
Wed, 14 Jun 2000 17:45:01 +0200 | paulson | new lemmas for signs of products | changeset | files |