---
tag: AXJS09JKXN
kind: concept
name: Countable cardinal
sources:
  - wikipedia: en:43580500@r1360947732
    locator: Glossary of set theory, section C
    note: adopted
    mention: wikipedia://en/43580500#KRQL
    sections: [Summary]
inventory: [C537PWE4ST]
---

## Summary

A cardinal number that represents the size of a countable set, typically the cardinality of the set of natural numbers.