view prepaper/src/NatAdd.agda @ 0:3dba680da508

init-test
author soto
date Tue, 08 Dec 2020 19:06:49 +0900
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open import nat
module nat_add where
 
_+_ : Nat -> Nat -> Nat
O + m     = m
(S n) + m = S (n + m)