		Search-engine friendly clone of the ACL2 documentation.

Cgraph-outedges

Cgraph-outedges-fix

Fixing function for cgraph-outedges structures.

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

Definitions and Theorems

Function: cgraph-outedges-fix$inline

(defun cgraph-outedges-fix$inline (x)
 (declare (xargs :guard (cgraph-outedges-p x)))
 (let ((__function__ 'cgraph-outedges-fix))
  (declare (ignorable __function__))
  (mbe
    :logic
    (b* ((formulas (cgraph-formulalist-fix (cdr (std::da-nth 0 x))))
         (equivs (cgraph-equivlist-fix (cdr (std::da-nth 1 x)))))
      (list (cons 'formulas formulas)
            (cons 'equivs equivs)))
    :exec x)))

Theorem: cgraph-outedges-p-of-cgraph-outedges-fix

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

Theorem: cgraph-outedges-fix-when-cgraph-outedges-p

(defthm cgraph-outedges-fix-when-cgraph-outedges-p
  (implies (cgraph-outedges-p x)
           (equal (cgraph-outedges-fix x) x)))

Function: cgraph-outedges-equiv$inline

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

Theorem: cgraph-outedges-equiv-is-an-equivalence

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

Theorem: cgraph-outedges-equiv-implies-equal-cgraph-outedges-fix-1

(defthm cgraph-outedges-equiv-implies-equal-cgraph-outedges-fix-1
  (implies (cgraph-outedges-equiv x x-equiv)
           (equal (cgraph-outedges-fix x)
                  (cgraph-outedges-fix x-equiv)))
  :rule-classes (:congruence))

Theorem: cgraph-outedges-fix-under-cgraph-outedges-equiv

(defthm cgraph-outedges-fix-under-cgraph-outedges-equiv
  (cgraph-outedges-equiv (cgraph-outedges-fix x)
                         x)
  :rule-classes (:rewrite :rewrite-quoted-constant))

Theorem: equal-of-cgraph-outedges-fix-1-forward-to-cgraph-outedges-equiv

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

Theorem: equal-of-cgraph-outedges-fix-2-forward-to-cgraph-outedges-equiv

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

Theorem: cgraph-outedges-equiv-of-cgraph-outedges-fix-1-forward

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

Theorem: cgraph-outedges-equiv-of-cgraph-outedges-fix-2-forward

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