---- > [!definition] Definition. ([[embedded submanifold]]) > Let $M$ be a [[smooth manifold]] and $N \subset M$ such that $N$ is itself a [[smooth manifold]]. We say $N$ is an **embedded submanifold of $M$** if > 1. The [[inclusion map]] $\iota :N \to M$ is [[smooth maps between manifolds|smooth]] > 2. The [[differential of a smooth map between smooth manifolds|differential]] $(d \iota)_{p}$ is [[injection|injective]] for all $p \in M$ (an [[smooth immersion|immersion]]) > 3. $\iota$ is a [[topological embedding]], i.e., a [[homeomorphism]] onto its image > > [!basicexample] > - The term [[differentiable Euclidean submanifold]] means "embedded submanifold of $\mathbb{R}^{n}$ of class $C^{r}$, $r>1quot;. ^basic-example ---- #### ---- #### References > [!backlink] > ```dataview > TABLE rows.file.link as "Further Reading" > FROM [[]] > FLATTEN file.tags as Tag > WHERE Tag = "#definition" OR Tag = "#theorem" OR Tag = "#MOC" OR Tag = "#proposition" OR Tag = "#axiom" > GROUP BY Tag > ``` > [!frontlink] > ```dataview > TABLE rows.file.link as "Further Reading" > FROM outgoing([[]]) > FLATTEN file.tags as Tag > WHERE Tag = "#definition" OR Tag = "#theorem" OR Tag = "#MOC" OR Tag = "#proposition" OR Tag = "#axiom" > GROUP BY Tag > ```