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Constraint-db

Constraint-db-p

Recognizer for constraint-db structures.

Signature
(constraint-db-p x) → *

Definitions and Theorems

Function: constraint-db-p

(defun constraint-db-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'constraint-db-p))
    (declare (ignorable __function__))
    (and (mbe :logic (and (alistp x)
                          (equal (strip-cars x) '(tab complete)))
              :exec (fty::alist-with-carsp x '(tab complete)))
         (b* ((tab (cdr (std::da-nth 0 x)))
              (complete (cdr (std::da-nth 1 x))))
           (and (constraint-table-p tab)
                (constraint-completed-table-p complete))))))

Theorem: consp-when-constraint-db-p

(defthm consp-when-constraint-db-p
  (implies (constraint-db-p x) (consp x))
  :rule-classes :compound-recognizer)