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• Scope-list

Scope-list-equiv

Basic equivalence relation for scope-list structures.

Definitions and Theorems

Function: scope-list-equiv$inline

(defun scope-list-equiv$inline (acl2::x acl2::y)
  (declare (xargs :guard (and (scope-listp acl2::x)
                              (scope-listp acl2::y))))
  (equal (scope-list-fix acl2::x)
         (scope-list-fix acl2::y)))

Theorem: scope-list-equiv-is-an-equivalence

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

Theorem: scope-list-equiv-implies-equal-scope-list-fix-1

(defthm scope-list-equiv-implies-equal-scope-list-fix-1
  (implies (scope-list-equiv acl2::x x-equiv)
           (equal (scope-list-fix acl2::x)
                  (scope-list-fix x-equiv)))
  :rule-classes (:congruence))

Theorem: scope-list-fix-under-scope-list-equiv

(defthm scope-list-fix-under-scope-list-equiv
  (scope-list-equiv (scope-list-fix acl2::x)
                    acl2::x)
  :rule-classes (:rewrite :rewrite-quoted-constant))

Theorem: equal-of-scope-list-fix-1-forward-to-scope-list-equiv

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

Theorem: equal-of-scope-list-fix-2-forward-to-scope-list-equiv

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

Theorem: scope-list-equiv-of-scope-list-fix-1-forward

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

Theorem: scope-list-equiv-of-scope-list-fix-2-forward

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