diff options
Diffstat (limited to 'flocq/Core/Ulp.v')
| -rw-r--r-- | flocq/Core/Ulp.v | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/flocq/Core/Ulp.v b/flocq/Core/Ulp.v index c42b3e65..2459e35b 100644 --- a/flocq/Core/Ulp.v +++ b/flocq/Core/Ulp.v @@ -18,8 +18,10 @@ COPYING file for more details. *) (** * Unit in the Last Place: our definition using fexp and its properties, successor and predecessor *) -Require Import Reals Psatz. -Require Import Raux Defs Round_pred Generic_fmt Float_prop. + +From Coq Require Import ZArith Reals Psatz. + +Require Import Zaux Raux Defs Round_pred Generic_fmt Float_prop. Section Fcore_ulp. @@ -1100,7 +1102,7 @@ exfalso ; lra. intros n Hn H. assert (fexp (mag beta eps) = fexp n). apply valid_exp; try assumption. -assert(mag beta eps-1 < fexp n)%Z;[idtac|lia]. +cut (mag beta eps-1 < fexp n)%Z. lia. apply lt_bpow with beta. apply Rle_lt_trans with (2:=proj2 H). destruct (mag beta eps) as (e,He). @@ -1165,7 +1167,7 @@ lra. intros n Hn H. assert (fexp (mag beta eps) = fexp n). apply valid_exp; try assumption. -assert(mag beta eps-1 < fexp n)%Z;[idtac|lia]. +cut (mag beta eps-1 < fexp n)%Z. lia. apply lt_bpow with beta. apply Rle_lt_trans with (2:=H). destruct (mag beta eps) as (e,He). @@ -1919,7 +1921,7 @@ rewrite ulp_neq_0; trivial. apply f_equal. unfold cexp. apply valid_exp; trivial. -assert (mag beta x -1 < fexp n)%Z;[idtac|lia]. +cut (mag beta x -1 < fexp n)%Z. lia. apply lt_bpow with beta. destruct (mag beta x) as (e,He). simpl. |