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Bip32-ext-key

Bip32-ext-key-p

Recognizer for bip32-ext-key structures.

Signature
(bip32-ext-key-p x) → *

Definitions and Theorems

Function: bip32-ext-key-p

(defun bip32-ext-key-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'bip32-ext-key-p))
    (declare (ignorable __function__))
    (and (consp x)
         (cond ((or (atom x) (eq (car x) :priv))
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((get (std::da-nth 0 (cdr x))))
                       (bip32-ext-priv-key-p get))))
               (t (and (eq (car x) :pub)
                       (and (true-listp (cdr x))
                            (eql (len (cdr x)) 1))
                       (b* ((get (std::da-nth 0 (cdr x))))
                         (bip32-ext-pub-key-p get))))))))

Theorem: consp-when-bip32-ext-key-p

(defthm consp-when-bip32-ext-key-p
  (implies (bip32-ext-key-p x) (consp x))
  :rule-classes :compound-recognizer)