If there is an alias substitution from the text font to a math-variant, only the text font is listed. The new style is on left, the old one on right. The most common is as a binary operator. There are two noticeable problems: Warning, very long table ahead stitched together from a multi-page table.
There seems to be a LaTeX style file for doing exactly the same thing.
Math Font Selection in LaTeX and Unicode
I do want CM in math mode! If there is an alias substitution from the text font to a math-variant, only the text font is listed. A basic matrix may be created using the matrix environment : Blackboard bold uppercase only. I noticed that issue a few weeks ago and assumed at the time that it was temporary; I guess it wasn't. My working experience covers industries ranging from district energy to medical imaging to cinematic visual effects.