proposition: Theorem ulp_FLX_0: (ulp beta FLX_exp 0 = 0)%R.
proof: Proof. unfold ulp; rewrite Req_bool_true; trivial. rewrite negligible_exp_FLX; easy. Qed.
imports: Coq(ZArith Reals Psatz) Zaux Raux Defs Round_pred Generic_fmt Float_prop FIX Ulp Round_NE