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thinnings
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Taneb merged 3 commits from initial-objects into main 2024-06-20 11:49:46 +01:00
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src/Thinning/Properties.agda
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@ -2,7 +2,7 @@
module Thinning.Properties where
open import Data.List.Base using (List)
open import Data.List.Base using (List; [])
open import Level using (Level)
open import Relation.Binary.PropositionalEquality.Core using (_≡_; refl; cong)
@ -48,3 +48,8 @@ assoc (exclude θ) (include φ) (include ψ) = cong exclude (assoc θ φ ψ)
assoc (exclude θ) (include φ) (exclude ψ) = cong exclude (assoc (exclude θ) (include φ) ψ)
assoc (exclude θ) (exclude φ) (include ψ) = cong exclude (assoc (exclude θ) φ ψ)
assoc (exclude θ) (exclude φ) (exclude ψ) = cong exclude (assoc (exclude θ) (exclude φ) ψ)
-- ¡ is the only Thinning from []
¡-unique : (θ : Thinning A [] xs) → ¡ ≡ θ
¡-unique end = refl
¡-unique (exclude θ) = cong exclude (¡-unique θ)