Definition nelstructonweq {X : UU} {n : nat} (sx : nelstruct n X) : nelstruct (factorial n) (X ≃ X) := (weqfweq X sx ∘ weqbweq (⟦ n ⟧) (invweq sx) ∘ invweq (weqfromweqstntostn n))%weq.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.DecidablePropositions. Require Import UniMath.MoreFoundations.NegativePropositions. Require Import UniMath.MoreFoundations.Subtypes.