fact: Definition Qeval_pop2 (o : Op2) : Q -> Q -> Prop := match o with | OpEq => Qeq | OpNEq => fun x y => ~ x == y | OpLe => Qle | OpGe => fun x y => Qle y x | OpLt => Qlt | OpGt => fun x y => Qlt y x end.
imports: OrderedRing RingMicromega Refl QArith Qfield EnvRing