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      • Defequal-event-generation

      Defequal-gen-right-to-left

      Generate the right-to-left rewrite rule.

      Signature
      (defequal-gen-right-to-left right-to-left right-to-left-enable 
                                  name left right x1...xn left-to-right) 
       
        → 
      (mv local-event exported-event)
      Arguments
      right-to-left — Guard (symbolp right-to-left).
      right-to-left-enable — Guard (booleanp right-to-left-enable).
      name — Guard (symbolp name).
      left — Guard (symbolp left).
      right — Guard (symbolp right).
      x1...xn — Guard (symbol-listp x1...xn).
      left-to-right — Guard (symbolp left-to-right).
      Returns
      local-event — Type (pseudo-event-formp local-event).
      exported-event — Type (pseudo-event-formp exported-event).

      Definitions and Theorems

      Function: defequal-gen-right-to-left

      (defun defequal-gen-right-to-left
             (right-to-left right-to-left-enable
                            name left right x1...xn left-to-right)
       (declare (xargs :guard (and (symbolp right-to-left)
                                   (booleanp right-to-left-enable)
                                   (symbolp name)
                                   (symbolp left)
                                   (symbolp right)
                                   (symbol-listp x1...xn)
                                   (symbolp left-to-right))))
       (let ((__function__ 'defequal-gen-right-to-left))
        (declare (ignorable __function__))
        (b*
         ((macro (if right-to-left-enable 'defthm
                   'defthmd))
          (body
           (cons 'implies
                 (cons (cons name 'nil)
                       (cons (cons 'equal
                                   (cons (cons right x1...xn)
                                         (cons (cons left x1...xn) 'nil)))
                             'nil))))
          (hints
           (cons
            ':hints
            (cons
             (cons
              (cons
                  '"Goal"
                  (cons ':in-theory
                        (cons (cons 'quote
                                    (cons (cons left-to-right 'nil) 'nil))
                              'nil)))
              'nil)
             'nil)))
          (local-event
               (cons 'local
                     (cons (cons macro
                                 (cons right-to-left (cons body hints)))
                           'nil)))
          (exported-event (cons macro
                                (cons right-to-left (cons body 'nil)))))
         (mv local-event exported-event))))

      Theorem: pseudo-event-formp-of-defequal-gen-right-to-left.local-event

      (defthm pseudo-event-formp-of-defequal-gen-right-to-left.local-event
        (b* (((mv ?local-event ?exported-event)
              (defequal-gen-right-to-left
                   right-to-left right-to-left-enable
                   name left right x1...xn left-to-right)))
          (pseudo-event-formp local-event))
        :rule-classes :rewrite)

      Theorem: pseudo-event-formp-of-defequal-gen-right-to-left.exported-event

      (defthm
          pseudo-event-formp-of-defequal-gen-right-to-left.exported-event
        (b* (((mv ?local-event ?exported-event)
              (defequal-gen-right-to-left
                   right-to-left right-to-left-enable
                   name left right x1...xn left-to-right)))
          (pseudo-event-formp exported-event))
        :rule-classes :rewrite)