DeclareRobustCommand \isactrlbsub/esub etc.;
DeclareRobustCommand \isactrlbsub/esub etc.;

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle