proposition: Lemma isaprop_isTRR (V : hSet) (E : hrel V) (r : V) : isaprop (isTRR V E r).
proof: Proof. apply isapropdirprod. - apply (isaprop_isrefl E). - apply isapropdirprod. -- apply (isaprop_istrans E). -- apply (isaprop_isaroot E r). Qed.
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