intros a b c H' H'0 H'1.
apply divP_comp with (a := multTerm (A:=A) multA (n:=n) a b) (c := b); auto.
Qed.
Hint Resolve divP_multTerm_r divP_multTerm_l.

(* Specifications: *)
Theorem divP_ppcl :
forall a b : Term A n,
~ zeroP (A:=A) A0 eqA (n:=n) a ->
~ zeroP (A:=A) A0 eqA (n:=n) b -> divP (ppc a b) a.