fact: Definition isTRRGhomo {G H : TRRGraph} (f : pr1 G → pr1 H) : UU := (∏ (x y : pr1 G), (x ≤ y) <-> (f x ≤ f y)) × (f (TRRG_root G) = TRRG_root H).
imports: UniMath.Foundations.PartB UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.Foundations.HLevels UniMath.Combinatorics.WellOrderedSets UniMath.Combinatorics.OrderedSets UniMath.MoreFoundations.DecidablePropositions UniMath.MoreFoundations.Propositions