Countable set

https://www.wikidata.org/wiki/Q185478

Field Hierarchy

Parent
Mathematics 21.1M papers	Pure mathematics 2.8M papers	Combinatorics 2.1M papers	Discrete mathematics 700k papers
Current
Countable set 17.4k papers
Child
Uncountable set 3,294 papers	Second-countable space 1,240 papers	Amenable group 451 papers	Cofinality 437 papers
Cosmic space 335 papers

Trends

Notes

History