changeset 60679 | ade12ef2773c |
parent 60500 | 903bb1495239 |
child 63462 | c1fe30f2bc32 |
--- a/src/HOL/Library/Bit.thy Mon Jul 06 22:06:02 2015 +0200 +++ b/src/HOL/Library/Bit.thy Mon Jul 06 22:57:34 2015 +0200 @@ -123,8 +123,8 @@ plus_bit_def times_bit_def minus_bit_def uminus_bit_def divide_bit_def inverse_bit_def -instance proof -qed (unfold field_bit_defs, auto split: bit.split) +instance + by standard (auto simp: field_bit_defs split: bit.split) end