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Sint-arrayp

Recognizer for sint-array structures.

Signature

(sint-arrayp x) → *

Definitions and Theorems

Function: sint-arrayp

(defun sint-arrayp (x)
       (declare (xargs :guard t))
       (let ((__function__ 'sint-arrayp))
            (declare (ignorable __function__))
            (and (consp x)
                 (eq (car x) :array)
                 (true-listp (cdr x))
                 (eql (len (cdr x)) 2)
                 (b* ((elemtype (std::da-nth 0 (cdr x)))
                      (elements (std::da-nth 1 (cdr x))))
                     (and (typep elemtype)
                          (sint-listp elements)
                          (type-case elemtype :sint)
                          (consp elements))))))

Theorem: consp-when-sint-arrayp

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