tidied proofs, using fast_tac etc. as much as possible
tidied proofs, using fast_tac etc. as much as possible

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