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Committee

Committeep

Recognizer for committee structures.

Signature
(committeep x) → *

Definitions and Theorems

Function: committeep

(defun committeep (x)
  (declare (xargs :guard t))
  (let ((__function__ 'committeep))
    (declare (ignorable __function__))
    (and (mbe :logic (and (alistp x)
                          (equal (strip-cars x) '(addresses)))
              :exec (fty::alist-with-carsp x '(addresses)))
         (b* ((addresses (cdr (std::da-nth 0 x))))
           (and (address-setp addresses)
                (not (emptyp addresses)))))))

Theorem: consp-when-committeep

(defthm consp-when-committeep
  (implies (committeep x) (consp x))
  :rule-classes :compound-recognizer)