Proofgold Proof

pf
Let x0 of type ι be given. Let x1 of type ι be given. Let x2 of type ι be given. Assume H0: nIn x2 x0. Assume H1: prim1 x2 (1ad11.. x0 x1). Apply H0. Apply unknownprop_f3a4771d3d9a8514b2ad16b328a764b0ce93421ae4df5a6923d3e167d035e33a with x0, x1, x2. The subproof is completed by applying H1. ■