Bifalgorithm post · Brisk · Chapter 1

What is the cardinality of a set?

What is the cardinality of a set? (Brisk · Chapter 1) — "When we talk about the number of elements in a set, we use the word cardinality. You’d think we could…

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  • La cardinalidad de un conjunto
  • La cardinalidad es el número de elementos que contiene un conjunto.
  • «Cardinalidad» es un término matemático usado en lugar de «tamaño» del conjunto.
  • La cardinalidad de F, el conjunto de mujeres de la familia Davies, es 3.
  • F tiene tres elementos.
  • La cardinalidad del conjunto vacío ∅ es 0.
  • La cardinalidad del conjunto de todos los enteros es ∞.
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What is the cardinality of a set?

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Brisk

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"When we talk about the number of elements in a set, we use the word cardinality. You’d think we could just call it the “size” of the set, but mathematicians sometimes like words that sound cool. The cardinality of F (the set of females, where the Davies family is the domain of discourse) is 3, because there are three elements in it. The cardinality of the empty set ∅ is 0. The cardinality of the set of all integers is ∞. Simple as that."

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