Section GeneralMonotonicity.
Variable gf: rel -> rel.

Lemma gupaco1_mon_gen (gf' clo clo': rel -> rel) x0 r r'
(IN: @gupaco1 gf clo r x0)
(gf_mon: monotone1 gf)
(LEgf: gf <2= gf')
(LEclo: clo <2= clo')
(LEr: r <1= r'):
@gupaco1 gf' clo' r' x0.