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Proposal

Proposalp

Recognizer for proposal structures.

Signature
(proposalp x) → *

Definitions and Theorems

Function: proposalp

(defun proposalp (x)
 (declare (xargs :guard t))
 (let ((__function__ 'proposalp))
  (declare (ignorable __function__))
  (and
   (mbe
      :logic (and (alistp x)
                  (equal (strip-cars x)
                         '(author round transactions previous)))
      :exec
      (fty::alist-with-carsp x
                             '(author round transactions previous)))
   (b* ((author (cdr (std::da-nth 0 x)))
        (round (cdr (std::da-nth 1 x)))
        (transactions (cdr (std::da-nth 2 x)))
        (previous (cdr (std::da-nth 3 x))))
     (and (addressp author)
          (posp round)
          (transaction-listp transactions)
          (address-setp previous))))))

Theorem: consp-when-proposalp

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