Started implementing uniqueness proof for recursion combinator (still unfinished).
Started implementing uniqueness proof for recursion
combinator (still unfinished).

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