proposition: Theorem Bsign_Babs : forall abs_nan x, is_nan x = false -> Bsign (Babs abs_nan x) = false.
proof: Proof. now intros abs_nan [| | |]. Qed.
imports: Coq(ZArith Reals Psatz SpecFloat) Core Round Bracket Operations Div Sqrt Relative BinarySingleNaN