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khibino/set1.agda

Created December 13, 2021 08:17
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set1.agda
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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