Let x0 of type ι be given.

Let x1 of type (ι → ο) → ο be given.

Let x2 of type ι be given.

Apply unknownprop_c7a2e369cb67c9982813f949fd0829141efbe360cf05ad9dd38a906208e5dff3 with 71057.. x0 x1 x2, x0, x1, x2.

Let x3 of type ι → ι → ο be given.

Assume H0: x3 (71057.. x0 x1 x2) (71057.. x0 x1 x2).

The subproof is completed by applying H0.

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Proofgold Proof