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Diffstat (limited to 'theories/ZArith/Zlogarithm.v')
| -rw-r--r-- | theories/ZArith/Zlogarithm.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/ZArith/Zlogarithm.v b/theories/ZArith/Zlogarithm.v index 319e2c269..23b692022 100644 --- a/theories/ZArith/Zlogarithm.v +++ b/theories/ZArith/Zlogarithm.v @@ -59,7 +59,7 @@ Section Log_pos. (* Log of positive integers *) Lemma Zlog2_up_log_sup : forall p, Z.log2_up (Zpos p) = log_sup p. Proof. - induction p; simpl. + induction p; simpl log_sup. - change (Zpos p~1) with (2*(Zpos p)+1). rewrite Z.log2_up_succ_double, Zlog2_log_inf; try easy. unfold Z.succ. now rewrite !(Z.add_comm _ 1), Z.add_assoc. |