Related cards
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Equipollence (geometry)
Property of parallel segments that have the same length and the same direction
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Intersection (set theory)
Concept in set theory (for the term in geometry, see Q1364910)
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número cardinal
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Power set
Set (in mathematics) containing all subsets of a given set
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Up to
Mathematical statement of uniqueness, except for an equivalent structure (equivalence relation)
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Meagre set
In topology, a countable union of nowhere dense subsets