fact: Definition preZFS_Branch_hsubtype_tohsubtype (T : preZFS) (x : T) (S : hsubtype (pr11 (preZFS_Branch T x))) : hsubtype (pr111 T) := λ t, ∃ e, S (t ,, e).
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