Remark 3.5.1.20. Let $f,f': X \rightarrow Y$ be morphisms of simplicial sets which are homotopic. Then $f$ is $n$-connective if and only if $f'$ is $n$-connective.
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$
Remark 3.5.1.20. Let $f,f': X \rightarrow Y$ be morphisms of simplicial sets which are homotopic. Then $f$ is $n$-connective if and only if $f'$ is $n$-connective.