Proofgold Proof

pf
Let x0 of type ι be given. Assume H0: nat_p x0. Apply SepI with prim6 0, λ x1 . nat_p x1, x0 leaving 2 subgoals. Apply nat_p_UnivOf_Empty with x0. The subproof is completed by applying H0. The subproof is completed by applying H0. ■