fact: Definition TRRGraph_univalence_weq1 (G H : TRRGraph) : G = H ≃ G ╝ H := total2_paths_equiv _ G 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