| Mon, 05 Jan 2009 00:10:38 +0100 | wenzelm | added is_control, is_regular, is_theory_begin; | changeset | files |
| Sun, 04 Jan 2009 15:40:30 +0100 | wenzelm | more precise is_relevant: requires original main goal, not initial goal state; | changeset | files |
| Sun, 04 Jan 2009 15:28:40 +0100 | wenzelm | tuned protect, conclude: Drule.comp_no_flatten; | changeset | files |