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Constraint-tuple

Constraint-tuple-fix

Fixing function for constraint-tuple structures.

Signature
(constraint-tuple-fix x) → new-x
Arguments: x — Guard (constraint-tuple-p x).
Returns: new-x — Type (constraint-tuple-p new-x).

Definitions and Theorems

Function: constraint-tuple-fix$inline

(defun constraint-tuple-fix$inline (x)
 (declare (xargs :guard (constraint-tuple-p x)))
 (let ((__function__ 'constraint-tuple-fix))
  (declare (ignorable __function__))
  (mbe :logic
       (b* ((rule (constraint-rule-fix (car (car x))))
            (existing-lits (pseudo-var-set-fix (car (cdr (car x)))))
            (matching-lit (pseudo-var-fix (cdr (cdr (car x)))))
            (common-vars (pseudo-var-set-fix (car (cdr x))))
            (existing-vars (pseudo-var-set-fix (car (cdr (cdr x)))))
            (sig-table (sig-table-fix (cdr (cdr (cdr x))))))
         (cons (cons rule (cons existing-lits matching-lit))
               (cons common-vars
                     (cons existing-vars sig-table))))
       :exec x)))

Theorem: constraint-tuple-p-of-constraint-tuple-fix

(defthm constraint-tuple-p-of-constraint-tuple-fix
  (b* ((new-x (constraint-tuple-fix$inline x)))
    (constraint-tuple-p new-x))
  :rule-classes :rewrite)

Theorem: constraint-tuple-fix-when-constraint-tuple-p

(defthm constraint-tuple-fix-when-constraint-tuple-p
  (implies (constraint-tuple-p x)
           (equal (constraint-tuple-fix x) x)))

Function: constraint-tuple-equiv$inline

(defun constraint-tuple-equiv$inline (x y)
  (declare (xargs :guard (and (constraint-tuple-p x)
                              (constraint-tuple-p y))))
  (equal (constraint-tuple-fix x)
         (constraint-tuple-fix y)))

Theorem: constraint-tuple-equiv-is-an-equivalence

(defthm constraint-tuple-equiv-is-an-equivalence
  (and (booleanp (constraint-tuple-equiv x y))
       (constraint-tuple-equiv x x)
       (implies (constraint-tuple-equiv x y)
                (constraint-tuple-equiv y x))
       (implies (and (constraint-tuple-equiv x y)
                     (constraint-tuple-equiv y z))
                (constraint-tuple-equiv x z)))
  :rule-classes (:equivalence))

Theorem: constraint-tuple-equiv-implies-equal-constraint-tuple-fix-1

(defthm constraint-tuple-equiv-implies-equal-constraint-tuple-fix-1
  (implies (constraint-tuple-equiv x x-equiv)
           (equal (constraint-tuple-fix x)
                  (constraint-tuple-fix x-equiv)))
  :rule-classes (:congruence))

Theorem: constraint-tuple-fix-under-constraint-tuple-equiv

(defthm constraint-tuple-fix-under-constraint-tuple-equiv
  (constraint-tuple-equiv (constraint-tuple-fix x)
                          x)
  :rule-classes (:rewrite :rewrite-quoted-constant))

Theorem: equal-of-constraint-tuple-fix-1-forward-to-constraint-tuple-equiv

(defthm
  equal-of-constraint-tuple-fix-1-forward-to-constraint-tuple-equiv
  (implies (equal (constraint-tuple-fix x) y)
           (constraint-tuple-equiv x y))
  :rule-classes :forward-chaining)

Theorem: equal-of-constraint-tuple-fix-2-forward-to-constraint-tuple-equiv

(defthm
  equal-of-constraint-tuple-fix-2-forward-to-constraint-tuple-equiv
  (implies (equal x (constraint-tuple-fix y))
           (constraint-tuple-equiv x y))
  :rule-classes :forward-chaining)

Theorem: constraint-tuple-equiv-of-constraint-tuple-fix-1-forward

(defthm constraint-tuple-equiv-of-constraint-tuple-fix-1-forward
  (implies (constraint-tuple-equiv (constraint-tuple-fix x)
                                   y)
           (constraint-tuple-equiv x y))
  :rule-classes :forward-chaining)

Theorem: constraint-tuple-equiv-of-constraint-tuple-fix-2-forward

(defthm constraint-tuple-equiv-of-constraint-tuple-fix-2-forward
  (implies (constraint-tuple-equiv x (constraint-tuple-fix y))
           (constraint-tuple-equiv x y))
  :rule-classes :forward-chaining)