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comparison Paper/src/zero.agda @ 0:14a0e409d574

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author soto <soto@cr.ie.u-ryukyu.ac.jp>
date Sun, 24 Apr 2022 23:13:44 +0900
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-1:000000000000 0:14a0e409d574
1 +zero : { y : ℕ } → y + zero ≡ y
2 +zero {zero} = refl
3 +zero {suc y} = cong suc ( +zero {y} )