added command 'ML_val' (presently just a clone of 'ML');
added command 'ML_val' (presently just a clone of 'ML');

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