From f46551452aa73df46cc44179af171811c7a8328e Mon Sep 17 00:00:00 2001
From: Robbert Krebbers <mail@robbertkrebbers.nl>
Date: Fri, 26 Apr 2019 22:16:05 +0200
Subject: [PATCH] A tweak suggested by @janno that may improve performance.

---
 theories/proofmode/reduction.v | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/theories/proofmode/reduction.v b/theories/proofmode/reduction.v
index 0db1e202a..173894c20 100644
--- a/theories/proofmode/reduction.v
+++ b/theories/proofmode/reduction.v
@@ -20,7 +20,7 @@ Declare Reduction pm_eval := cbv [
 Ltac pm_eval t :=
   eval pm_eval in t.
 Ltac pm_reduce :=
-  match goal with |- ?u => let v := pm_eval u in change v end.
+  match goal with |- ?u => let v := pm_eval u in convert_concl_no_check v end.
 Ltac pm_reflexivity := pm_reduce; exact eq_refl.
 
 (** Called by many tactics for redexes that are created by instantiation.
-- 
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