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Diffstat (limited to 'lib/Floats.v')
| -rw-r--r-- | lib/Floats.v | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Floats.v b/lib/Floats.v index 7ae1705..94c19d2 100644 --- a/lib/Floats.v +++ b/lib/Floats.v @@ -453,6 +453,12 @@ Proof. now apply cmp_le_lt_eq. Qed. +Theorem cmp_lt_gt_false: + forall f1 f2, cmp Clt f1 f2 = true -> cmp Cgt f1 f2 = true -> False. +Proof. + unfold cmp; intros; destruct (order_float f1 f2) as [ [] | ]; discriminate. +Qed. + (** Properties of conversions to/from in-memory representation. The double-precision conversions are bijective (one-to-one). The single-precision conversions lose precision exactly |