blob: fec285188122686b7cd905d8539cca0a8fb7a4e3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i Lemma mult_non_zero :(r1,r2:R)``r1<>0`` /\ ``r2<>0`` -> ``r1*r2<>0``. i*)
Require Import Rbase.
Ltac split_Rmult :=
match goal with
| |- ((?X1 * ?X2)%R <> 0%R) =>
apply Rmult_integral_contrapositive; split; try split_Rmult
end.
|
