export is_finished; added thy_ord (based on update_time); begin_thy/register_thy: more precise handling of update_time;
export is_finished;
added thy_ord (based on update_time);
begin_thy/register_thy: more precise handling of update_time;

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