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Ringosc3

Ringosc3-p

Recognizer for ringosc3 structures.

Signature
(ringosc3-p x) → *

Definitions and Theorems

Function: ringosc3-p

(defun ringosc3-p (x)
 (declare (xargs :guard t))
 (let ((acl2::__function__ 'ringosc3-p))
  (declare (ignorable acl2::__function__))
  (and
    (mbe :logic (and (alistp x)
                     (equal (strip-cars x)
                            '(n1 n2 n3 inv1 inv2 inv3)))
         :exec (fty::alist-with-carsp x '(n1 n2 n3 inv1 inv2 inv3)))
    (b* ((n1 (cdr (std::da-nth 0 x)))
         (n2 (cdr (std::da-nth 1 x)))
         (n3 (cdr (std::da-nth 2 x)))
         (inv1 (cdr (std::da-nth 3 x)))
         (inv2 (cdr (std::da-nth 4 x)))
         (inv3 (cdr (std::da-nth 5 x))))
      (and (sig-path-p n1)
           (sig-path-p n2)
           (sig-path-p n3)
           (inverter-p inv1)
           (inverter-p inv2)
           (inverter-p inv3))))))

Theorem: consp-when-ringosc3-p

(defthm consp-when-ringosc3-p
  (implies (ringosc3-p x) (consp x))
  :rule-classes :compound-recognizer)