::
Ho provato con il codice che c’è nella risposta ma mi produce questo messaggio di errore:
! Undefined control sequence.
\it@cwm ->\let \it@@next
\relax \ifcat \noexpand \it@temp a\def \it@@next {…
l.396 … S \arrow{rr} & & C \end{tikzcd}
The control sequence at the end of the top line
of your error message was never \def’ed. If you have
misspelled it (e.g., `\hobx’), type `I’ and the correct
spelling (e.g., `I\hbox’). Otherwise just continue,
and I’ll forget about whatever was undefined.
Non capisco cosa non funziona.
Questo è il preambolo del mio file:`
\documentclass[oneside,italian]{book}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}
\usepackage{units}
\usepackage{amsthm}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{esint}
\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Textclass specific LaTeX commands.
\numberwithin{equation}{section}
\numberwithin{figure}{section}
\theoremstyle{definition}
\newtheorem*{defn*}{\protect\definitionname}
\theoremstyle{remark}
\newtheorem*{rem*}{\protect\remarkname}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
\usepackage{tikz-cd}
\AtBeginDocument{
\def\labelitemi{i}
\def\labelitemii{\(\bigtriangledown\)}
\def\labelitemiv{i)}
}
\makeatother
\usepackage{babel}
\providecommand{\definitionname}{Definizione}
\providecommand{\remarkname}{Osservazione}`
.
