author | wenzelm |
Mon, 11 Oct 1999 20:43:38 +0200 | |
changeset 7832 | 77bac5d84162 |
parent 7831 | 2a13c396201d |
child 7833 | f5288e4b95d1 |
--- a/src/HOL/HOL_lemmas.ML Mon Oct 11 20:42:06 1999 +0200 +++ b/src/HOL/HOL_lemmas.ML Mon Oct 11 20:43:38 1999 +0200 @@ -264,7 +264,7 @@ rtac (impI RS prem RS eqTrueI) 1, etac subst 1, assume_tac 1]); -val ccontr = FalseE RS classical; +bind_thm ("ccontr", FalseE RS classical); (*Double negation law*) Goal "~~P ==> P";