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-rw-r--r--plugins/micromega/ZifyComparison.v9
1 files changed, 5 insertions, 4 deletions
diff --git a/plugins/micromega/ZifyComparison.v b/plugins/micromega/ZifyComparison.v
index 8a8b40ded8..df75cf2c05 100644
--- a/plugins/micromega/ZifyComparison.v
+++ b/plugins/micromega/ZifyComparison.v
@@ -9,7 +9,8 @@
(************************************************************************)
Require Import Bool ZArith.
-Require Import ZifyClasses.
+Require Import Zify ZifyClasses.
+Require Import Lia.
Local Open Scope Z_scope.
(** [Z_of_comparison] is the injection function for comparison *)
@@ -64,11 +65,11 @@ Proof.
intros.
destruct (x ?= y) eqn:C; simpl.
- rewrite Z.compare_eq_iff in C.
- intuition.
+ lia.
- rewrite Z.compare_lt_iff in C.
- intuition.
+ lia.
- rewrite Z.compare_gt_iff in C.
- intuition.
+ lia.
Qed.
Instance ZcompareSpec : BinOpSpec ZcompareZ :=