--- a/NEWS Fri Dec 09 14:14:05 2011 +0100
+++ b/NEWS Fri Dec 09 14:52:51 2011 +0100
@@ -80,6 +80,7 @@
word_left_minus ~> left_minus
word_diff_0_right ~> diff_0_right
word_diff_self ~> diff_self
+ word_diff_minus ~> diff_minus
word_add_ac ~> add_ac
word_mult_ac ~> mult_ac
word_plus_ac0 ~> add_0_left add_0_right add_ac
--- a/src/HOL/Word/Word.thy Fri Dec 09 14:14:05 2011 +0100
+++ b/src/HOL/Word/Word.thy Fri Dec 09 14:52:51 2011 +0100
@@ -249,8 +249,6 @@
lemma word_sub_def: "a - b = a + - (b :: 'a :: len0 word)"
unfolding word_sub_wi diff_minus
by (simp only : word_uint.Rep_inverse wi_hom_syms)
-
-lemmas word_diff_minus = word_sub_def
lemma word_of_int_sub_hom:
"(word_of_int a) - word_of_int b = word_of_int (a - b)"