Proofgold Proof

pf
Let x0 of type ι be given. Let x1 of type ι be given. Apply unknownprop_fae427bc41f12b0a58f67eb9355d1f93cf338eca71a81d96c98e57d2cf625f68 with 11e73.. x0 x1, x0, x1. Let x2 of type ι → ι → ο be given. Assume H0: x2 (11e73.. x0 x1) (11e73.. x0 x1). The subproof is completed by applying H0. ■