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    Equate-expression-lists

    Construct a list of equalities between two lists of expressions, element-wise.

    Signature
    (equate-expression-lists lefts rights) → equalities
    Arguments
    lefts — Guard (expression-listp lefts).
    rights — Guard (expression-listp rights).
    Returns
    equalities — Type (expression-listp equalities).

    Definitions and Theorems

    Function: equate-expression-lists

    (defun equate-expression-lists (lefts rights)
      (declare (xargs :guard (and (expression-listp lefts)
                                  (expression-listp rights))))
      (declare (xargs :guard (= (len lefts) (len rights))))
      (let ((__function__ 'equate-expression-lists))
        (declare (ignorable __function__))
        (cond ((endp lefts) nil)
              (t (cons (equate-expressions (car lefts)
                                           (car rights))
                       (equate-expression-lists (cdr lefts)
                                                (cdr rights)))))))

    Theorem: expression-listp-of-equate-expression-lists

    (defthm expression-listp-of-equate-expression-lists
      (b* ((equalities (equate-expression-lists lefts rights)))
        (expression-listp equalities))
      :rule-classes :rewrite)

    Theorem: equate-expression-lists-of-expression-list-fix-lefts

    (defthm equate-expression-lists-of-expression-list-fix-lefts
      (equal (equate-expression-lists (expression-list-fix lefts)
                                      rights)
             (equate-expression-lists lefts rights)))

    Theorem: equate-expression-lists-expression-list-equiv-congruence-on-lefts

    (defthm
      equate-expression-lists-expression-list-equiv-congruence-on-lefts
      (implies (expression-list-equiv lefts lefts-equiv)
               (equal (equate-expression-lists lefts rights)
                      (equate-expression-lists lefts-equiv rights)))
      :rule-classes :congruence)

    Theorem: equate-expression-lists-of-expression-list-fix-rights

    (defthm equate-expression-lists-of-expression-list-fix-rights
     (equal (equate-expression-lists lefts (expression-list-fix rights))
            (equate-expression-lists lefts rights)))

    Theorem: equate-expression-lists-expression-list-equiv-congruence-on-rights

    (defthm
     equate-expression-lists-expression-list-equiv-congruence-on-rights
     (implies (expression-list-equiv rights rights-equiv)
              (equal (equate-expression-lists lefts rights)
                     (equate-expression-lists lefts rights-equiv)))
     :rule-classes :congruence)