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Showerthoughts@lemmy.worldEnglish · 1 天前

Imaginary numbers are more real than infinity.

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Imaginary numbers are more real than infinity.

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Showerthoughts@lemmy.worldEnglish · 1 天前

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Leate_Wonceslace@lemmy.dbzer0.com
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1 天前
A set is infinite exactly when there exists a proper subset whose cardinality is that of the set.

Showerthoughts@lemmy.world

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