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diff --git a/mathcomp/ssrtest/abstract_var2.v b/mathcomp/ssrtest/abstract_var2.v
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+Require Import ssreflect.
+
+Set Implicit Arguments.
+
+Axiom P : nat -> nat -> Prop.
+
+Axiom tr :
+  forall x y z, P x y -> P y z -> P x z.
+
+Lemma test a b c : P a c -> P a b.
+Proof.
+intro H.
+Fail have [: s1 s2] H1 : P a b := @tr _ _ _ s1 s2.
+have [: w s1 s2] H1 : P a b := @tr _ w _ s1 s2.
+Abort.
+