Mon, 21 Apr 1997 13:49:40 +0200 | nipkow | Modified credits. | changeset | files |
Mon, 21 Apr 1997 12:16:29 +0200 | paulson | New elimination rule for "unique existence" | changeset | files |
Mon, 21 Apr 1997 12:16:04 +0200 | paulson | New introduction rule for "unique existence" | changeset | files |