# Thom's first isotopy lemma

> Theorem

**Wikidata**: [Q113134061](https://www.wikidata.org/wiki/Q113134061)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Thom's_first_isotopy_lemma)  
**Source**: https://4ort.xyz/entity/thom-s-first-isotopy-lemma