\everymath{\it\/}
-%\DeclareMathSymbol{\shortminus}{\mathbin}{AMSa}{"39} %chktex 18
-\newcommand{\shortminus}{-}
+\DeclareMathSymbol{\shortminus}{\mathbin}{AMSa}{"39} %chktex 18
+%\newcommand{\shortminus}{-}
+
+%\DeclareFontEncoding{X2}{lmr}{}
+\DeclareFontFamily{X2}{lmr}{}
+\DeclareFontShape{X2}{lmr}{m}{n}{ <-> ssub * cmr/m/n }{}