Warning 9.6.6.11. In the situation of Proposition 9.6.6.10, if the morphisms $f$ and $f''$ are left orthogonal to $g$, then $f'$ need not be left orthogonal to $g$.
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$
Warning 9.6.6.11. In the situation of Proposition 9.6.6.10, if the morphisms $f$ and $f''$ are left orthogonal to $g$, then $f'$ need not be left orthogonal to $g$.