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• Defobject-info

Defobject-info-equiv

Basic equivalence relation for defobject-info structures.

Definitions and Theorems

Function: defobject-info-equiv$inline

(defun defobject-info-equiv$inline (acl2::x acl2::y)
  (declare (xargs :guard (and (defobject-infop acl2::x)
                              (defobject-infop acl2::y))))
  (equal (defobject-info-fix acl2::x)
         (defobject-info-fix acl2::y)))

Theorem: defobject-info-equiv-is-an-equivalence

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

Theorem: defobject-info-equiv-implies-equal-defobject-info-fix-1

(defthm defobject-info-equiv-implies-equal-defobject-info-fix-1
  (implies (defobject-info-equiv acl2::x x-equiv)
           (equal (defobject-info-fix acl2::x)
                  (defobject-info-fix x-equiv)))
  :rule-classes (:congruence))

Theorem: defobject-info-fix-under-defobject-info-equiv

(defthm defobject-info-fix-under-defobject-info-equiv
  (defobject-info-equiv (defobject-info-fix acl2::x)
                        acl2::x)
  :rule-classes (:rewrite :rewrite-quoted-constant))

Theorem: equal-of-defobject-info-fix-1-forward-to-defobject-info-equiv

(defthm
      equal-of-defobject-info-fix-1-forward-to-defobject-info-equiv
  (implies (equal (defobject-info-fix acl2::x)
                  acl2::y)
           (defobject-info-equiv acl2::x acl2::y))
  :rule-classes :forward-chaining)

Theorem: equal-of-defobject-info-fix-2-forward-to-defobject-info-equiv

(defthm
      equal-of-defobject-info-fix-2-forward-to-defobject-info-equiv
  (implies (equal acl2::x (defobject-info-fix acl2::y))
           (defobject-info-equiv acl2::x acl2::y))
  :rule-classes :forward-chaining)

Theorem: defobject-info-equiv-of-defobject-info-fix-1-forward

(defthm defobject-info-equiv-of-defobject-info-fix-1-forward
  (implies (defobject-info-equiv (defobject-info-fix acl2::x)
                                 acl2::y)
           (defobject-info-equiv acl2::x acl2::y))
  :rule-classes :forward-chaining)

Theorem: defobject-info-equiv-of-defobject-info-fix-2-forward

(defthm defobject-info-equiv-of-defobject-info-fix-2-forward
  (implies
       (defobject-info-equiv acl2::x (defobject-info-fix acl2::y))
       (defobject-info-equiv acl2::x acl2::y))
  :rule-classes :forward-chaining)