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src/HOL/Semiring_Normalization.thy
changeset 59550 ded0ff754037
parent 59548 d9304532c7ab
child 59551 5283e349b339 
--- a/src/HOL/Semiring_Normalization.thy	Sun Feb 15 17:01:22 2015 +0100
+++ b/src/HOL/Semiring_Normalization.thy	Sun Feb 15 17:01:22 2015 +0100
@@ -113,7 +113,6 @@
   "x * (y + z) = (x * y) + (x * z)"
   "x ^ (Suc q) = x * (x ^ q)"
   "x ^ (2*n) = (x ^ n) * (x ^ n)"
-  "x ^ (Suc (2*n)) = x * ((x ^ n) * (x ^ n))"
   by (simp_all add: algebra_simps power_add power2_eq_square
     power_mult_distrib power_mult del: one_add_one)
isabelle