instance heine_borel < complete_space; generalize many lemmas to class heine_borel
instance heine_borel < complete_space; generalize many lemmas to class heine_borel

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