Yeah that's what I was thinking, you need both | Hacker News

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		kavouras 7 months ago \| parent \| context \| favorite \| on: That XOR Trick (2020) Yeah that's what I was thinking, you need both

OjotCewIo 7 months ago [–]

yep, you need both; and in fact the definition includes both: https://en.wikipedia.org/wiki/Abelian_group

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