[Tex/LaTex] unicode-math but ordinary blackboard bold

unicode-mathxetex

Working with XeLaTex, I use the package unicode-math in my document. Everything is fine except for the mathbb characters, which I would like to have the ordinary way. With unicode-math, \mathbb{R} produces:

enter image description here

while I'd like to have:

enter image description here

(but still use unicode-math for everything else). Now I want to add a command like:

\setmathfont[range=\mathbb]{??Computer Modern??}

where ??Computer Modern?? has to be replaced by the appropriate font name, in order to get back the mathbb symbols which are used before unicode-math is loaded. The problem is, I don't know the appropriate font name of the standard math font (should be Computer Modern or Latin Modern Math or something like that). I have already tried loads of different strings, including "cm", "lmr", "Computer Modern" etc. Any suggestions for the font name which is required by \setmathfont here?

Best Answer

\documentclass{article}
\usepackage{amssymb}
\let\mathbbalt\mathbb
\usepackage{unicode-math}
%\let\mathbb\mathbbalt% UNIVERSAL RESET TO ORIGINAL \mathbb
\begin{document}
\begin{equation}
\mathbb{R}\quad\mathbbalt{R}% OR JUST CALL ON INDIVIDUAL ORIGINAL GLYPHS
\end{equation}
\end{document}

As written above, one can access the original \mathbb glyphs via \mathbbalt.

enter image description here

Uncommenting the "UNIVERSAL RESET" line gives this result:

enter image description here