Section Arg1.
Variable gf : rel1 T0 -> rel1 T0.
Arguments gf : clear implicits.

Theorem _paco1_acc: forall
l r (OBG: forall rr (INC: r <1== rr) (CIH: l <1== rr), l <1== paco1 gf rr),
l <1== paco1 gf r.