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-rw-r--r--lib/Iteration.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Iteration.v b/lib/Iteration.v
index 66bb3970..34471826 100644
--- a/lib/Iteration.v
+++ b/lib/Iteration.v
@@ -240,7 +240,7 @@ Lemma iter_monot:
Proof.
induction p; intros.
simpl. red; intros; red; auto.
- destruct q. elimtype False; lia.
+ destruct q. exfalso; lia.
simpl. apply F_iter_monot. apply IHp. lia.
Qed.