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Binary-info

Binary-infop

Recognizer for binary-info structures.

Signature
(binary-infop x) → *

Definitions and Theorems

Function: binary-infop

(defun binary-infop (x)
  (declare (xargs :guard t))
  (let ((__function__ 'binary-infop))
    (declare (ignorable __function__))
    (and (mbe :logic (and (alistp x)
                          (equal (strip-cars x) '(type)))
              :exec (fty::alist-with-carsp x '(type)))
         (b* ((type (cdr (std::da-nth 0 x))))
           (typep type)))))

Theorem: consp-when-binary-infop

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