Section Arg1_1.
Definition monotone1 T0 (gf: rel1 T0 -> rel1 T0) :=
forall x0 r r' (IN: gf r x0) (LE: r <1= r'), gf r' x0.
Variable T0 : Type.
Variable gf: rel1 T0 -> rel1 T0.
Arguments gf: clear implicits.
(*Implicit Arguments gf [  ].*)

Theorem paco1_2_0_mon: monotone1_2 (paco1_2_0 gf_0 gf_1).