Section Distributivity.
Variable gf: rel -> rel.
Hypothesis gf_mon: monotone3 gf.

Lemma gpaco3_dist clo r rg
(CMP: wcompatible3 gf clo)
(DIST: forall r1 r2, clo (r1 \3/ r2) <3= (clo r1 \3/ clo r2)):
gpaco3 gf clo r rg <3= (paco3 gf (rclo3 clo (rg \3/ r)) \3/ rclo3 clo r).