Proofgold Proof

pf
Let x0 of type ι be given. Let x1 of type ι → ο be given. Apply unknownprop_a2011094301afc7191f07da5aaff5089e647cc16d8e3ddd255f80564fc54c630 with 81bb1.. x0 x1, x0, x1. Let x2 of type ι → ι → ο be given. Assume H0: x2 (81bb1.. x0 x1) (81bb1.. x0 x1). The subproof is completed by applying H0. ■