view prepaper/src/NatAdd.agda @ 14:a63df15c9afc default tip

DONE
author soto <soto@cr.ie.u-ryukyu.ac.jp>
date Mon, 15 Feb 2021 23:36:39 +0900
parents 3dba680da508
children
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open import nat
module nat_add where
 
_+_ : Nat -> Nat -> Nat
O + m     = m
(S n) + m = S (n + m)