I have a very long derivation, that needs to look like:
A = B \\ = C \\ = D \\
etc. The derivation spans across many lines. I'm looking for a way to typeset it so that when it reaches the end of the page it can continue naturally on the next page, without trying to fit the entire equation into a single page. I'm currently using eqnarray and it insists that all its contents sit on a single page.
Can anyone suggest another environment that supports multi-page equations?