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add desciptive lemma
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Thu, 22 Jun 2017 08:56:32 +0900
parents d6a6dd305da2
children
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module level-ex where

open import Level

postulate ℓ : Level

postulate A : Set ℓ

postulate a : A

lemma1 : Set  ℓ → A
lemma1  = λ x → a

lemma2 : A → Set  ℓ
lemma2 = λ x → A

lemma3 : Set  (suc ℓ)
lemma3 = A → Set  ℓ