Example 3.6.4.4. A simplicial set $X$ is weakly contractible if and only if the geometric realization $|X|$ is a contractible topological space.
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$
Example 3.6.4.4. A simplicial set $X$ is weakly contractible if and only if the geometric realization $|X|$ is a contractible topological space.