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Proofgold Proof

pf
Let x0 of type ((ι((ιι) → ιι) → ι) → ι) → (ιι) → (ιι) → ι(ιι) → ι be given.
Let x1 of type (ιCT2 ι) → (ιι) → ι be given.
Let x2 of type ((((ιιι) → ιιι) → (ιιι) → (ιι) → ι) → ι) → ι(((ιι) → ιι) → ι) → ι be given.
Let x3 of type (((ιι) → ι) → (((ιι) → ι) → ιιι) → (ιι) → ι) → ((((ιι) → ιι) → ιιι) → ιι) → ι be given.
Assume H0: ∀ x4 : ι → ι . ∀ x5 . ∀ x6 : (((ι → ι)ι → ι)(ι → ι)ι → ι)(ι → ι → ι)ι → ι . ∀ x7 : (ι → ι) → ι . x3 (λ x8 : (ι → ι) → ι . λ x9 : ((ι → ι) → ι)ι → ι → ι . λ x10 : ι → ι . 0) (λ x8 : ((ι → ι)ι → ι)ι → ι → ι . λ x9 . x9) = x4 0.
Apply FalseE with ...............(∀ x4 : ι → ((ι → ι)ι → ι)ι → ι → ι . ∀ x5 x6 . ∀ x7 : ι → ι . x0 (λ x8 : ι → ((ι → ι)ι → ι) → ι . 0) (λ x8 . Inj1 (x3 (λ x9 : (ι → ι) → ι . λ x10 : ((ι → ι) → ι)ι → ι → ι . λ x11 : ι → ι . 0) (λ x9 : ((ι → ι)ι → ι)ι → ι → ι . λ x10 . 0))) (λ x8 . x0 (λ x9 : ι → ((ι → ι)ι → ι) → ι . x0 (λ x10 : ι → ((ι → ι)ι → ι) → ι . 0) (λ x10 . 0) (λ x10 . Inj0 (x0 (λ x11 : ι → ((ι → ι)ι → ι) → ι . 0) (λ x11 . 0) (λ x11 . 0) 0 (λ x11 . 0))) 0 (λ x10 . setsum 0 (x0 (λ x11 : ι → ((ι → ι)ι → ι) → ι . 0) ... ... 0 ...))) ... ... ... ...) 0 ... = ...)(∀ x4 : (((ι → ι)ι → ι)(ι → ι)ι → ι)ι → ι . ∀ x5 : ((ι → ι → ι) → ι)ι → ι → ι → ι . ∀ x6 : (ι → ι → ι) → ι . ∀ x7 . x0 (λ x8 : ι → ((ι → ι)ι → ι) → ι . x0 (λ x9 : ι → ((ι → ι)ι → ι) → ι . x0 (λ x10 : ι → ((ι → ι)ι → ι) → ι . 0) (λ x10 . 0) (λ x10 . x10) (x3 (λ x10 : (ι → ι) → ι . λ x11 : ((ι → ι) → ι)ι → ι → ι . λ x12 : ι → ι . x2 (λ x13 : ((ι → ι → ι)ι → ι → ι)(ι → ι → ι)(ι → ι) → ι . 0) 0 (λ x13 : (ι → ι)ι → ι . 0)) (λ x10 : ((ι → ι)ι → ι)ι → ι → ι . λ x11 . x9 0 (λ x12 : ι → ι . λ x13 . 0))) (λ x10 . x1 (λ x11 . λ x12 : ι → ι → ι . x9 0 (λ x13 : ι → ι . λ x14 . 0)) (λ x11 . x10))) (λ x9 . x0 (λ x10 : ι → ((ι → ι)ι → ι) → ι . x2 (λ x11 : ((ι → ι → ι)ι → ι → ι)(ι → ι → ι)(ι → ι) → ι . setsum 0 0) (x2 (λ x11 : ((ι → ι → ι)ι → ι → ι)(ι → ι → ι)(ι → ι) → ι . 0) 0 (λ x11 : (ι → ι)ι → ι . 0)) (λ x11 : (ι → ι)ι → ι . setsum 0 0)) (λ x10 . 0) (λ x10 . x9) x7 (λ x10 . 0)) (λ x9 . setsum (Inj1 0) 0) (setsum x7 0) (λ x9 . x7)) (λ x8 . x1 (λ x9 . λ x10 : ι → ι → ι . setsum 0 0) (λ x9 . x9)) (λ x8 . x3 (λ x9 : (ι → ι) → ι . λ x10 : ((ι → ι) → ι)ι → ι → ι . λ x11 : ι → ι . x1 (λ x12 . λ x13 : ι → ι → ι . x3 (λ x14 : (ι → ι) → ι . λ x15 : ((ι → ι) → ι)ι → ι → ι . λ x16 : ι → ι . x1 (λ x17 . λ x18 : ι → ι → ι . 0) (λ x17 . 0)) (λ x14 : ((ι → ι)ι → ι)ι → ι → ι . λ x15 . 0)) (λ x12 . 0)) (λ x9 : ((ι → ι)ι → ι)ι → ι → ι . λ x10 . setsum x10 (Inj1 0))) (Inj0 (setsum (x6 (λ x8 x9 . x6 (λ x10 x11 . 0))) 0)) (λ x8 . Inj0 0) = setsum (x5 (λ x8 : ι → ι → ι . x0 (λ x9 : ι → ((ι → ι)ι → ι) → ι . setsum (x9 0 (λ x10 : ι → ι . λ x11 . 0)) (x9 0 (λ x10 : ι → ι . λ x11 . 0))) (λ x9 . 0) (λ x9 . 0) (x1 (λ x9 . λ x10 : ι → ι → ι . x7) (λ x9 . x1 (λ x10 . λ x11 : ι → ι → ι . 0) (λ x10 . 0))) (λ x9 . x8 (Inj1 0) (x1 (λ x10 . λ x11 : ι → ι → ι . 0) (λ x10 . 0)))) 0 (Inj1 (setsum (x2 (λ x8 : ((ι → ι → ι)ι → ι → ι)(ι → ι → ι)(ι → ι) → ι . 0) 0 (λ x8 : (ι → ι)ι → ι . 0)) (setsum 0 0))) (x0 (λ x8 : ι → ((ι → ι)ι → ι) → ι . 0) (λ x8 . 0) (λ x8 . x8) x7 (λ x8 . 0))) 0)False.
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