Source: wikibot/3-manifold
= 3-manifold
{wiki=3-manifold}
A 3-manifold is a topological space that locally resembles Euclidean 3-dimensional space. More formally, a space \\( M \\) is called a 3-manifold if every point in \\( M \\) has a neighborhood that is homeomorphic (topologically equivalent) to an open subset of \\( \\mathbb\{R\}^3 \\).