------------------------------------------------------------------------
-- The Agda standard library
--
-- Empty values (e.g. [] for List, nothing for Maybe)
------------------------------------------------------------------------
{-# OPTIONS --cubical-compatible --safe #-}
module Effect.Empty where
open import Level using (Level; suc; _⊔_)
private
variable
ℓ ℓ′ : Level
A : Set ℓ
record RawEmpty (F : Set ℓ → Set ℓ′) : Set (suc ℓ ⊔ ℓ′) where
field
empty : F A
-- backwards compatibility: unicode variants
∅ : F A
∅ = empty
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