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fix
author ryokka
date Mon, 09 Mar 2020 11:25:49 +0900
parents c7acb9211784
children
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open import nat
module nat_add where
 
_+_ : Nat @$\rightarrow$@ Nat @$\rightarrow$@ Nat
O + m     = m
(S n) + m = S (n + m)