Section Arg7.
Variable gf : rel7 T0 T1 T2 T3 T4 T5 T6 -> rel7 T0 T1 T2 T3 T4 T5 T6.
Arguments gf : clear implicits.

Theorem paco7_acc: forall
l r (OBG: forall rr (INC: r <7= rr) (CIH: l <7= rr), l <7= paco7 gf rr),
l <7= paco7 gf r.