I have two very similar conditions, so I would like to have them be labeled Condition 3 and Condition 3' (or whatever number it happens to be). They do not appear one directly after the other in the document, in case that affects anything. I have a Condition environment defined via
\newtheorem{condition}[theorem]{Condition}
but I don't know how to get one to copy the number of the other and insert a '
. Any help is appreciated.