fact: Definition prl_subfam_hyp S M:= [/\ fgraph M, domain M = psI S, forall i, inc i (psI S) -> sub (Vg M i) (Vg (psE S) i) & forall i j, gle (psr S) i j -> sub (Vfs (Vg (psf S) (J i j)) (Vg M j)) (Vg M i) ].
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat)