lower skolem penalty to ensure that some useful facts with existentials, e.g. congruence of "setsum", eventually get picked up
lower skolem penalty to ensure that some useful facts with existentials, e.g. congruence of "setsum", eventually get picked up

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