Created
December 13, 2021 08:17
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| open import Agda.Primitive using (lsuc) | |
| open import Data.Bool using (Bool) | |
| Fix : ∀{l} -> (Set l → Set l) → Set (lsuc l) | |
| Fix f = ∀ k → (f k → k) → k | |
| T : ∀{l} → Set l → Set l | |
| T a = (a → Bool) → Bool | |
| X : Set1 | |
| X = Fix T | |
| Y : Set1 | |
| Y = T (Fix T) |
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