Tue, 15 Sep 1998 13:09:23 +0200 | nipkow | Function 'step' is already defined in NA.thy. | changeset | files |
Tue, 15 Sep 1998 10:40:40 +0200 | paulson | tidied | changeset | files |
Mon, 14 Sep 1998 10:18:07 +0200 | paulson | commented out duplicate proof | changeset | files |
Mon, 14 Sep 1998 10:17:44 +0200 | paulson | simpler proof | changeset | files |