[texhax] how to make nonreferred equations notnumbered

[Victor Ivrii]

Is there any package which looks if equation \label{mylabel} is
referred and if not treats it as {equation*}

May be there is script doing this?

foo.aux stores label info but where is stored info about references
(except foo.tex)?

Thank you in advance


Victor

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Victor Ivrii, Professor, Department of Mathematics, University of Toronto
http://www.math.toronto.edu/ivrii