Definition isofnelweqb {X Y : UU} {n : nat} (w : X ≃ Y) (sy : isofnel n Y) : isofnel n X := hinhfun (nelstructweqb w) sy.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.DecidablePropositions. Require Import UniMath.MoreFoundations.NegativePropositions. Require Import UniMath.MoreFoundations.Subtypes.