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Store-funct

Store-funct-p

Recognizer for store-funct structures.

Signature
(store-funct-p x) → *

Definitions and Theorems

Function: store-funct-p

(defun store-funct-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'store-funct-p))
    (declare (ignorable __function__))
    (and (consp x)
         (cond ((or (atom x) (eq (car x) :sb))
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               ((eq (car x) :sh)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               ((eq (car x) :sw)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               (t (and (eq (car x) :sd)
                       (and (true-listp (cdr x))
                            (eql (len (cdr x)) 0))
                       (b* nil t)))))))

Theorem: consp-when-store-funct-p

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