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(* (c) Copyright 2006-2016 Microsoft Corporation and Inria.                  *)

Require Import ssreflect.
Require Import ssrfun ssrbool TestSuite.ssr_mini_mathcomp.

Lemma ltn_leq_trans : forall n m p : nat, m < n -> n <= p -> m < p.
move=> n m p Hmn Hnp; rewrite -ltnS.
Fail rewrite (_ : forall n0 m0 p0 : nat, m0 <= n0 -> n0 < p0 -> m0 < p0).
Fail rewrite leq_ltn_trans.
Admitted.