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Proofgold Proof

pf
Let x0 of type ι be given.
Let x1 of type ι be given.
Assume H0: Inj0 x0 = Inj0 x1.
Apply unknownprop_05a8fb1492e1d649432d99059efe6cb5519f68cbf274db02d816fcaae9af18ba with x0, λ x2 x3 . x2 = x1.
Apply unknownprop_05a8fb1492e1d649432d99059efe6cb5519f68cbf274db02d816fcaae9af18ba with x1, λ x2 x3 . Unj (Inj0 x0) = x2.
Apply H0 with λ x2 x3 . Unj x3 = Unj (Inj0 x1).
Let x2 of type ιιο be given.
Assume H1: x2 (Unj (Inj0 x1)) (Unj (Inj0 x1)).
The subproof is completed by applying H1.