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Proofgold Proof

pf
Let x0 of type ο be given.
Assume H0: ∀ x1 . (∃ x2 : ι → ι . MetaCat_initial_p SelfInjection UnaryFuncHom struct_id struct_comp x1 x2) ⟶ x0.
Apply H0 with pack_u 0 (λ x1 . x1).
Let x1 of type ο be given.
Assume H1: ∀ x2 : ι → ι . MetaCat_initial_p SelfInjection UnaryFuncHom struct_id struct_comp (pack_u 0 (λ x3 . x3)) x2 ⟶ x1.
Apply H1 with λ x2 . lam 0 (λ x3 . x3).
Claim L2: ∀ x2 . SelfInjection x2 ⟶ struct_u x2
Let x2 of type ι be given.
Assume H2: SelfInjection x2.
Apply H2 with struct_u x2.
Assume H3: struct_u x2.
Assume H4: unpack_u_o x2 (λ x3 . inj x3 x3).
The subproof is completed by applying H3.
Claim L3: SelfInjection (pack_u 0 (λ x2 . x2))
Apply unknownprop_afe4ec9c099d22c2baeaca2850cc89467409764fbc77a18c8ff75d652dbea36a with 0, λ x2 . x2 leaving 2 subgoals.
Let x2 of type ι be given.
Assume H3: x2 ∈ 0.
The subproof is completed by applying H3.
Let x2 of type ι be given.
Assume H3: x2 ∈ 0.
Apply FalseE with ∀ x3 . x3 ∈ 0 ⟶ (λ x4 . x4) x2 = (λ x4 . x4) x3 ⟶ x2 = x3.
Apply EmptyE with x2.
The subproof is completed by applying H3.
Apply unknownprop_c7314f2432739dec7e3d09b8b84398b3dfe5e7bfe33d21fac0129a984e9f917e with SelfInjection leaving 2 subgoals.
The subproof is completed by applying L2.
The subproof is completed by applying L3.
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