Library/Tree: use datatype_new, bst is an inductive predicate
Library/Tree: use datatype_new, bst is an inductive predicate

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