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    • Abstract-syntax

    Alternative-list->name-list

    Lift alternative->name to lists.

    Signature
    (alternative-list->name-list x) → *
    Arguments
    x — Guard (alternative-listp x).

    This is an ordinary std::defprojection.

    Definitions and Theorems

    Function: alternative-list->name-list-exec

    (defun alternative-list->name-list-exec (x acc)
      (declare (xargs :guard (alternative-listp x)))
      (declare (xargs :guard t))
      (let ((__function__ 'alternative-list->name-list-exec))
        (declare (ignorable __function__))
        (if (consp x)
            (alternative-list->name-list-exec
                 (cdr x)
                 (cons (alternative->name (car x)) acc))
          acc)))

    Function: alternative-list->name-list-nrev

    (defun alternative-list->name-list-nrev (x acl2::nrev)
      (declare (xargs :stobjs (acl2::nrev)))
      (declare (xargs :guard (alternative-listp x)))
      (declare (xargs :guard t))
      (let ((__function__ 'alternative-list->name-list-nrev))
        (declare (ignorable __function__))
        (if (atom x)
            (acl2::nrev-fix acl2::nrev)
          (let ((acl2::nrev (acl2::nrev-push (alternative->name (car x))
                                             acl2::nrev)))
            (alternative-list->name-list-nrev (cdr x)
                                              acl2::nrev)))))

    Function: alternative-list->name-list

    (defun alternative-list->name-list (x)
      (declare (xargs :guard (alternative-listp x)))
      (declare (xargs :guard t))
      (let ((__function__ 'alternative-list->name-list))
        (declare (ignorable __function__))
        (mbe :logic
             (if (consp x)
                 (cons (alternative->name (car x))
                       (alternative-list->name-list (cdr x)))
               nil)
             :exec
             (if (atom x)
                 nil
               (acl2::with-local-nrev
                    (alternative-list->name-list-nrev x acl2::nrev))))))

    Theorem: nth-of-alternative-list->name-list

    (defthm nth-of-alternative-list->name-list
      (equal (nth acl2::n
                  (alternative-list->name-list acl2::x))
             (and (< (nfix acl2::n) (len acl2::x))
                  (alternative->name (nth acl2::n acl2::x))))
      :rule-classes ((:rewrite)))

    Theorem: alternative-list->name-list-nrev-removal

    (defthm alternative-list->name-list-nrev-removal
      (equal (alternative-list->name-list-nrev acl2::x acl2::nrev)
             (append acl2::nrev
                     (alternative-list->name-list acl2::x)))
      :rule-classes ((:rewrite)))

    Theorem: alternative-list->name-list-exec-removal

    (defthm alternative-list->name-list-exec-removal
      (equal (alternative-list->name-list-exec acl2::x acl2::acc)
             (revappend (alternative-list->name-list acl2::x)
                        acl2::acc))
      :rule-classes ((:rewrite)))

    Theorem: alternative-list->name-list-of-rev

    (defthm alternative-list->name-list-of-rev
      (equal (alternative-list->name-list (rev acl2::x))
             (rev (alternative-list->name-list acl2::x)))
      :rule-classes ((:rewrite)))

    Theorem: alternative-list->name-list-of-list-fix

    (defthm alternative-list->name-list-of-list-fix
      (equal (alternative-list->name-list (list-fix acl2::x))
             (alternative-list->name-list acl2::x))
      :rule-classes ((:rewrite)))

    Theorem: alternative-list->name-list-of-append

    (defthm alternative-list->name-list-of-append
      (equal (alternative-list->name-list (append acl2::a acl2::b))
             (append (alternative-list->name-list acl2::a)
                     (alternative-list->name-list acl2::b)))
      :rule-classes ((:rewrite)))

    Theorem: cdr-of-alternative-list->name-list

    (defthm cdr-of-alternative-list->name-list
      (equal (cdr (alternative-list->name-list acl2::x))
             (alternative-list->name-list (cdr acl2::x)))
      :rule-classes ((:rewrite)))

    Theorem: car-of-alternative-list->name-list

    (defthm car-of-alternative-list->name-list
      (equal (car (alternative-list->name-list acl2::x))
             (and (consp acl2::x)
                  (alternative->name (car acl2::x))))
      :rule-classes ((:rewrite)))

    Theorem: alternative-list->name-list-under-iff

    (defthm alternative-list->name-list-under-iff
      (iff (alternative-list->name-list acl2::x)
           (consp acl2::x))
      :rule-classes ((:rewrite)))

    Theorem: consp-of-alternative-list->name-list

    (defthm consp-of-alternative-list->name-list
      (equal (consp (alternative-list->name-list acl2::x))
             (consp acl2::x))
      :rule-classes ((:rewrite)))

    Theorem: len-of-alternative-list->name-list

    (defthm len-of-alternative-list->name-list
      (equal (len (alternative-list->name-list acl2::x))
             (len acl2::x))
      :rule-classes ((:rewrite)))

    Theorem: true-listp-of-alternative-list->name-list

    (defthm true-listp-of-alternative-list->name-list
      (true-listp (alternative-list->name-list acl2::x))
      :rule-classes :type-prescription)

    Theorem: alternative-list->name-list-when-not-consp

    (defthm alternative-list->name-list-when-not-consp
      (implies (not (consp acl2::x))
               (equal (alternative-list->name-list acl2::x)
                      nil))
      :rule-classes ((:rewrite)))

    Theorem: alternative-list->name-list-of-cons

    (defthm alternative-list->name-list-of-cons
      (equal (alternative-list->name-list (cons acl2::a acl2::b))
             (cons (alternative->name acl2::a)
                   (alternative-list->name-list acl2::b)))
      :rule-classes ((:rewrite)))

    Theorem: identifier-listp-of-alternative-list->name-list

    (defthm identifier-listp-of-alternative-list->name-list
      (identifier-listp (alternative-list->name-list x)))

    Theorem: alternative-list->name-list-of-alternative-list-fix-x

    (defthm alternative-list->name-list-of-alternative-list-fix-x
      (equal (alternative-list->name-list (alternative-list-fix x))
             (alternative-list->name-list x)))

    Theorem: alternative-list->name-list-alternative-list-equiv-congruence-on-x

    (defthm
     alternative-list->name-list-alternative-list-equiv-congruence-on-x
     (implies (alternative-list-equiv x x-equiv)
              (equal (alternative-list->name-list x)
                     (alternative-list->name-list x-equiv)))
     :rule-classes :congruence)