Definition isofnelempty2 {X : UU} (nx : neg X) : isofnel 0 X := hinhpr (nelstructonempty2 nx).
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.DecidablePropositions. Require Import UniMath.MoreFoundations.NegativePropositions. Require Import UniMath.MoreFoundations.Subtypes.