polf.
Qed.

(* Specifications: *)
Theorem polf_test2: forall x y, 0 < x -> x  <= x  * y -> 1 <= y.
intros.
Theorem polf_test2: forall x y, 0 < x -> x  <= x  * y -> 1 <= y.
intros.
Theorem polf_test2: forall x y, (0 < x -> x  <= x  * y -> 1 <= y)%Z.
intros.
Theorem polf_test2: forall x y, (0 < x -> x  <= x  * y -> 1 <= y)%R.
intros.