Can greek letter, math formulation spec added to commonMark
You can use Unicode for Greek letters or HTML (named) character references (vulgo “entities”) like α.
Inline formulas and block equations would be the domain of a future math extension, building upon existing conventions.
There have been previous discussions:
Math extensions are widely implemented, but there is unfortunately no consensus on the syntax. If you want to discuss, let’s continue one of the above threads.