fact: Definition nelstructonstn (n : nat) : nelstruct n (⟦ n ⟧) := idweq (⟦ n ⟧).
imports: UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.DecidablePropositions UniMath.MoreFoundations.NegativePropositions UniMath.Combinatorics.StandardFiniteSets UniMath.MoreFoundations.Subtypes