Math 2.0

concept

Cardinality

Summary

The cardinality of a set is a measure of its size, the number of its elements. Two sets have the same cardinality exactly when they are equinumerous.

What this node needs for W2
  • edge instance_of in: at least two examples (0 of 2)
  • edge not_instance_of in: at least one non-example (0 of 1)
  • edge specializes both: the more general notions and the special cases (0 of 1)

The writing levels say how complete the text of a node is. They do not measure its truth.

Sources

  1. Web https://en.wikipedia.org/wiki/Cardinality, lead section