module Prelude.Empty where

open import Prelude.Level

----------------------------------------------------------------------
-- Level polymorphic empty type
----------------------------------------------------------------------
data Ø {ℓ : Level} : Set ℓ where

Øelim :
  {ℓ ℓ' : Level}
  {A : Set ℓ'}
  → ------------
  Ø{ℓ} → A

Øelim ()

-- Falsity
⊥ : Set

⊥ = Ø {ℓ₀}

{-# DISPLAY Ø {ℓ₀} = ⊥ #-}

----------------------------------------------------------------------
-- Negation
----------------------------------------------------------------------
¬ : {l : Level} → Set l → Set l

¬ {l} A = A → Ø{l}