Proofgold Proof

pf
Apply unknownprop_ce54d5ef942573b8a5e252b7d383c47677ca0bf9a20df871ef49769286038d6d with ordsucc, nat_p, 0 leaving 2 subgoals. The subproof is completed by applying nat_ordsucc. The subproof is completed by applying nat_0. ■