abbreviation(_i): do not expand abbreviations, do not use derived_def;
abbreviation(_i): do not expand abbreviations, do not use derived_def;

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