# Continuum hypothesis/Related Articles

From Citizendium, the Citizens' Compendium

*See also changes related to Continuum hypothesis, or pages that link to Continuum hypothesis or to this page or whose text contains "Continuum hypothesis".*

## Parent topics

- Cardinality [r]: The size, i.e., the number of elements, of a (possibly infinite) set.
^{[e]}--> - Cardinal number [r]: The generalization of natural numbers (as means to count the elements of a set) to infinite sets.
^{[e]} - Set theory [r]: Mathematical theory that models collections of (mathematical) objects and studies their properties.
^{[e]} - History of set theory [r]:
*Add brief definition or description*

## Subtopics

- Countable set [r]: A set with as many elements as there are natural numbers, or less.
^{[e]}