Tikzcd。如何左对齐？

Question

我需要将输出左对齐，而不是居中。有人可以帮忙吗？

代码：

\begin{tikzcd}[arrows = dash, row sep = 0.5cm]
F[\,x\,]
\arrow[d]
\\
F_n[\,x\,] =  f \in \F[\,x\,] \td  deg \ f <n 
\arrow[d,"n+1"]
\\
F 
\end{tikzcd} 

输出：

Answer 1

我猜你想要这样的东西：

\documentclass{article}
\usepackage{amsmath,amssymb,mathtools}
\usepackage{tikz-cd}

\newcommand{\F}{\mathbb{F}}
\newcommand{\td}{:}

\begin{document}

\begin{tikzcd}[arrows = dash, row sep = 0.5cm,column sep=-0.8em]
\F[x]
\arrow[d]
\\
\F_n[x] 
\arrow[d,"n+1"]
& {} = \{ f \in \F[x] \td  \deg f < n \}
\\
\F 
\end{tikzcd} 

\end{document}