A great and recommended package to send proofs to the appendix. The first problem is that it does not work with SyncTex (although this is ok most of the time); the second problem is that it asks you to redefine your theorem environments (and this seems to be mostly fine with most templates).
IEEEtran — LiCS template
The IEEEtran template (for LiCS, for instance) uses the command
\appendicesfor multiple-section appendices, instead of the usual\appendix. Because of this, one needs to use a modified version ofapxproofwhere the issued command\appendixis substituted by\appendices.
Incompatibility with thmtools
Multiple errors related to FancyVerb appear when using apxproof and thmtools in conjunction. Monitor theorem packages if getting FancyVerb errors from apxproof.
Tags: Latex.