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author | blanchet |

Thu, 24 May 2012 17:46:35 +0200 | |

changeset 47990 | 7a642e5c272c |

parent 47989 | 1e790c27162d |

child 47991 | 3eb598b044ad |

fixed soundness bug in Nitpick related to unfolding -- the unfolding criterion must at least as strict when looking at a definitional axiom as elsewhere, otherwise we end up unfolding a constant's definition in its own definition, yielding a trivial equality

--- a/src/HOL/Tools/Nitpick/nitpick_hol.ML Thu May 24 17:42:47 2012 +0200 +++ b/src/HOL/Tools/Nitpick/nitpick_hol.ML Thu May 24 17:46:35 2012 +0200 @@ -1733,7 +1733,7 @@ | NONE => let fun def_inline_threshold () = - if is_boolean_type (nth_range_type (length ts) T) andalso + if is_boolean_type (body_type T) andalso total_consts <> SOME true then def_inline_threshold_for_booleans else