For example I want to use \iint from ams package and also mathabx package in one file together. Actually I want a command that neutralizes ams package effect and replace it with mathabx package effect from here on in my file.
Thanks for your responsibility.
This is my example minimal file:
\documentclass[12pt,a4paper]{report}
\usepackage{amsmath}
\usepackage{mathabx}
\begin{document}
i want this one in ams style:
\[
\iiint\,\iiint\, \iiint\,\oint\,
\]
text text text text text text text text text text text text
and this one in mathabx style:
\[
\iiint\,\iiint\, \iiint\,\oint\,
\]
but both of them are the same and i don't like it .....
\end{document}



\let\amssum=\sum
\usepackage{mathptmx}
\let\ptmxsum=\sum
\let\sum\amssum – SH.Madadpour Dec 17 '17 at 09:28
=sign for consistency\let\sum=\amssum. – Dec 17 '17 at 17:45