Wed, 02 Jan 2008 15:14:02 +0100 | haftmann | splitted class uminus from class minus | changeset | files |
Wed, 02 Jan 2008 12:22:38 +0100 | paulson | testing for empty sort | changeset | files |
Wed, 02 Jan 2008 12:22:05 +0100 | paulson | new metis proofs | changeset | files |