| λ x0 : ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → (ι → ι) → ι → ι . λ x1 : ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → ((ι → ι) → ι → ι) → (ι → ι) → ι → ι . λ x2 x3 x4 : (ι → ι) → ι → ι . x0 (x1 x2 x4 x4 x4 x4 x4 x4 x4) (x1 x4 x3 x3 x3 x3 x3 x3 x3) (x1 x3 x2 x2 x2 x2 x2 x2 x2) |
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