intros Q p H'; elim H'; auto.
intros q H'0 H'1; inversion H'1; auto.
intros a p0 q s H'0 H'1 H'2 H'3 H'4 q0 H'5 H'6.
cut (canonical A0 eqA ltM q); [ intros C0 | idtac ].
cut (canonical A0 eqA ltM s); [ intros C1 | idtac ].
apply CombLinear_1 with (a := a) (p := p0) (q := q); auto.
apply (eqp_trans _ _ _ _ _ _ _ _ _ cs n) with (y := s); auto;
apply (eqp_sym _ _ _ _ _ _ _ _ _ cs n); auto.
apply eqp_imp_canonical with (p := q0) (1 := cs); auto.
apply (eqp_sym _ _ _ _ _ _ _ _ _ cs n); auto.
apply inPolySet_imp_canonical with (L := Q); auto.
Qed.
Hint Resolve CombLinear_canonical.

Theorem CombLinear_pluspf :
forall (Q : list (poly A0 eqA ltM)) (p : list (Term A n)),
CombLinear Q p ->
forall q : list (Term A n),
CombLinear Q q ->
CombLinear Q
(pluspf (A:=A) A0 (eqA:=eqA) plusA eqA_dec (n:=n) (ltM:=ltM) ltM_dec p q).