src/HOL/RealDef.thy
changeset 47428 45b58fec9024
parent 47108 2a1953f0d20d
child 47489 04e7d09ade7a
     1.1 --- a/src/HOL/RealDef.thy	Wed Apr 11 21:40:46 2012 +0200
     1.2 +++ b/src/HOL/RealDef.thy	Thu Apr 12 07:33:14 2012 +0200
     1.3 @@ -1058,8 +1058,7 @@
     1.4  by simp (* solved by linordered_ring_le_cancel_factor simproc *)
     1.5  
     1.6  lemma real_mult_le_cancel_iff2 [simp]: "(0::real) < z ==> (z*x \<le> z*y) = (x\<le>y)"
     1.7 -by (rule mult_le_cancel_left_pos)
     1.8 -(* BH: Why doesn't "simp" prove this one, like it does the last one? *)
     1.9 +by simp (* solved by linordered_ring_le_cancel_factor simproc *)
    1.10  
    1.11  
    1.12  subsection {* Embedding numbers into the Reals *}