Section Companion.
Variable gf: rel -> rel.
Hypothesis gf_mon: monotone14 gf.
Inductive cpn14 (r: rel) x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 : Prop :=
| cpn14_intro
clo
(COM: compatible14 gf clo)
(CLO: clo r x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13)
.

Lemma cpn14_step r:
gf (cpn14 r) <14= cpn14 r.