blob: a1150fb4bd72f21ce1480d77c7a370614ba50c1d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
|
(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(* This needs unification on type *)
Goal (n,m:nat)(eq nat (S m) (S n)).
Intros.
Apply f_equal.
(* f_equal : (A,B:Set; f:(A->B); x,y:A)x=y->(f x)=(f y) *)
(* and A cannot be deduced from the goal but only from the type of f, x or y *)
|
