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    • Std/system/function-queries

    Ruler-extenders

    Ruler-extenders of a named logic-mode recursive function.

    Signature
    (ruler-extenders fn wrld) → ruler-extenders
    Arguments
    fn — Guard (symbolp fn).
    wrld — Guard (plist-worldp wrld).
    Returns
    ruler-extenders — A symbol-listp of :all.

    See rulers for background.

    See ruler-extenders+ for an enhanced variant of this utility.

    Definitions and Theorems

    Function: ruler-extenders

    (defun ruler-extenders (fn wrld)
      (declare (xargs :guard (and (symbolp fn) (plist-worldp wrld))))
      (let ((__function__ 'ruler-extenders))
        (declare (ignorable __function__))
        (b* ((justification (getpropc fn 'justification nil wrld)))
          (access justification
                  justification :ruler-extenders))))