changeset 16733 | 236dfafbeb63 |
parent 15481 | fc075ae929e4 |
child 17915 | e38947f9ba5e |
--- a/src/HOL/Matrix/Matrix.thy Thu Jul 07 12:36:56 2005 +0200 +++ b/src/HOL/Matrix/Matrix.thy Thu Jul 07 12:39:17 2005 +0200 @@ -131,7 +131,7 @@ apply (simp add: one_matrix_def) apply (simplesubst RepAbs_matrix) apply (rule exI[of _ n], simp add: split_if)+ -by (simp add: split_if, arith) +by (simp add: split_if) lemma nrows_one_matrix[simp]: "nrows ((one_matrix n) :: ('a::axclass_0_neq_1)matrix) = n" (is "?r = _") proof -