Section GeneralMonotonicity.
Variable gf: rel -> rel.

Lemma gupaco0_mon_gen (gf' clo clo': rel -> rel) r r'
(IN: @gupaco0 gf clo r)
(gf_mon: monotone0 gf)
(LEgf: gf <1= gf')
(LEclo: clo <1= clo')
(LEr: r <0= r'):
@gupaco0 gf' clo' r'.