Amstex sample bold greek

Using Bold Greek Letters in AmSTeX

Bold Greek letters are available using the \boldsymbol macro, which needs to be enabled by calling \loadbold in the preamble.

\documentstyle{amsppt}

\loadbold

\document
Let $\boldsymbol\alpha$ be a vector.  Call it $\boldsymbol\beta$.
\enddocument

(Note that this is not to be taken as an example of good mathematical exposition.)