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view paper/src/NatAdd.agda.replaced @ 2:c7acb9211784

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add code, figure. and paper fix content
author ryokka
date Mon, 27 Jan 2020 20:41:36 +0900
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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)