diff --git a/dev_scripts_helpers/documentation/latex_abbrevs.sty b/dev_scripts_helpers/documentation/latex_abbrevs.sty
index 23ee6c94f..1bb764f54 100644
--- a/dev_scripts_helpers/documentation/latex_abbrevs.sty
+++ b/dev_scripts_helpers/documentation/latex_abbrevs.sty
@@ -1,5 +1,14 @@
 % From https://tex.stackexchange.com/questions/75667/change-colour-on-chapter-section-headings-lyx
 \usepackage{xcolor}
+
+% Math packages for symbols like \approx, \rightarrow, etc.
+\usepackage{amsmath}
+\usepackage{amssymb}
+\usepackage{amsfonts}
+
+% Unicode support for Greek letters and other Unicode characters
+\usepackage[utf8]{inputenc}
+\usepackage{textgreek}
 %\usepackage{sectsty}
 %\chapterfont{\color{blue}}
 %\sectionfont{\color{red}}
@@ -349,4 +358,4 @@
 
 % For some reasons new commands can't end with a number.
 %\newcommand{\v0}{\vv{0}}
-%\newcommand{\v1}{\vv{1}}
+%\newcommand{\v1}{\vv{1}}
\ No newline at end of file