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Commit-op

Commit-opp

Recognizer for commit-op structures.

Signature
(commit-opp x) → *

Definitions and Theorems

Function: commit-opp

(defun commit-opp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'commit-opp))
    (declare (ignorable __function__))
    (and (consp x)
         (cond ((or (atom x)
                    (eq (car x) :commit.bhp256))
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               ((eq (car x) :commit.bhp512)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               ((eq (car x) :commit.bhp768)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               ((eq (car x) :commit.bhp1024)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               ((eq (car x) :commit.ped64)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               (t (and (eq (car x) :commit.ped128)
                       (and (true-listp (cdr x))
                            (eql (len (cdr x)) 0))
                       (b* nil t)))))))

Theorem: consp-when-commit-opp

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