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Constraint-tuple

Constraint-tuple-p

Recognizer for constraint-tuple structures.

Signature
(constraint-tuple-p x) → *

Definitions and Theorems

Function: constraint-tuple-p

(defun constraint-tuple-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'constraint-tuple-p))
    (declare (ignorable __function__))
    (and (consp x)
         (consp (car x))
         (consp (cdr (car x)))
         (consp (cdr x))
         (consp (cdr (cdr x)))
         (b* ((rule (car (car x)))
              (existing-lits (car (cdr (car x))))
              (matching-lit (cdr (cdr (car x))))
              (common-vars (car (cdr x)))
              (existing-vars (car (cdr (cdr x))))
              (sig-table (cdr (cdr (cdr x)))))
           (and (constraint-rule-p rule)
                (pseudo-var-set-p existing-lits)
                (pseudo-var-p matching-lit)
                (pseudo-var-set-p common-vars)
                (pseudo-var-set-p existing-vars)
                (sig-table-p sig-table))))))

Theorem: consp-when-constraint-tuple-p

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