Section Arg6.
Variable gf : rel6 T0 T1 T2 T3 T4 T5 -> rel6 T0 T1 T2 T3 T4 T5.
Arguments gf : clear implicits.

Theorem paco6_mult_strong: forall r,
paco6 gf (upaco6 gf r) <6= paco6 gf r.