# Suslin tree

> in set theory, a tree of height ω₁ whose every branch and every antichain is countable

**Wikidata**: [Q7649127](https://www.wikidata.org/wiki/Q7649127)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Suslin_tree)  
**Source**: https://4ort.xyz/entity/suslin-tree