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garden/proper subset.md
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flancian e26cc36d7c Wow, forgot to use 'git mv', previous changelists are [[cursed]].
Will still revert journals to [[iso 8601]] after this commit.
2021-05-07 21:33:26 +02:00

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proper subset

  • S1 is a proper subset of S2 iif S2 has some items which aren't in S1. That is, they are not equal.