fact: Variables (R : Type) (rO : R) (rI : R) (radd : R -> R -> R) (rmul : R -> R -> R) (rsub : R -> R -> R) (ropp : R -> R) (req : R -> R -> Prop) (C : Type) (cO : C) (cI : C) (cadd : C -> C -> C) (cmul : C -> C -> C) (csub : C -> C -> C) (copp : C -> C) (ceqb : C -> C -> bool) (phi : C -> R).
imports: Zbool BinInt BinNat Setoid Ring_theory Ring_polynom