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• Cgraph-edgelist

Cgraph-edgelist-equiv

Basic equivalence relation for cgraph-edgelist structures.

Definitions and Theorems

Function: cgraph-edgelist-equiv$inline

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

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

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

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

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

Theorem: cgraph-edgelist-fix-under-cgraph-edgelist-equiv

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

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

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

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

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

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

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

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

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