diff options
Diffstat (limited to 'theories/Reals/Machin.v')
| -rw-r--r-- | theories/Reals/Machin.v | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/theories/Reals/Machin.v b/theories/Reals/Machin.v index 19db476f..cdf98cbd 100644 --- a/theories/Reals/Machin.v +++ b/theories/Reals/Machin.v @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) Require Import Fourier. @@ -53,7 +55,7 @@ assert (-(PI/4) <= atan x). destruct xm1 as [xm1 | xm1]. rewrite <- atan_1, <- atan_opp; apply Rlt_le, atan_increasing. assumption. - solve[rewrite <- xm1, atan_opp, atan_1; apply Rle_refl]. + solve[rewrite <- xm1; change (-1) with (-(1)); rewrite atan_opp, atan_1; apply Rle_refl]. assert (-(PI/4) < atan y). rewrite <- atan_1, <- atan_opp; apply atan_increasing. assumption. |