Section Arg0_1.
Definition monotone0 (gf: rel0 -> rel0) :=
forall r r' (IN: gf r) (LE: r <0= r'), gf r'.
Variable gf : rel0 -> rel0.
Arguments gf : clear implicits.

Theorem paco0_2_0_mon: monotone0_2 (paco0_2_0 gf_0 gf_1).