tuned signature; load_path: always used, even for partially qualified path names; check_file: precise (no adding of extensions!); misc cleanup;
tuned signature;
load_path: always used, even for partially qualified path names;
check_file: precise (no adding of extensions!);
misc cleanup;

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