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    • Var-decl-map

    Var-decl-map-fix

    (var-decl-map-fix x) is an fty alist fixing function that follows the drop-keys strategy.

    Signature
    (var-decl-map-fix x) → fty::newx
    Arguments
    x — Guard (var-decl-map-p x).
    Returns
    fty::newx — Type (var-decl-map-p fty::newx).

    Note that in the execution this is just an inline identity function.

    Definitions and Theorems

    Function: var-decl-map-fix$inline

    (defun
     var-decl-map-fix$inline (x)
     (declare (xargs :guard (var-decl-map-p x)))
     (let
       ((__function__ 'var-decl-map-fix))
       (declare (ignorable __function__))
       (mbe :logic
            (if (atom x)
                nil
                (let ((rest (var-decl-map-fix (cdr x))))
                     (if (and (consp (car x)) (svar-p (caar x)))
                         (let ((fty::first-key (caar x))
                               (fty::first-val (wire-fix (cdar x))))
                              (cons (cons fty::first-key fty::first-val)
                                    rest))
                         rest)))
            :exec x)))

    Theorem: var-decl-map-p-of-var-decl-map-fix

    (defthm var-decl-map-p-of-var-decl-map-fix
            (b* ((fty::newx (var-decl-map-fix$inline x)))
                (var-decl-map-p fty::newx))
            :rule-classes :rewrite)

    Theorem: var-decl-map-fix-when-var-decl-map-p

    (defthm var-decl-map-fix-when-var-decl-map-p
            (implies (var-decl-map-p x)
                     (equal (var-decl-map-fix x) x)))

    Function: var-decl-map-equiv$inline

    (defun var-decl-map-equiv$inline (x y)
           (declare (xargs :guard (and (var-decl-map-p x)
                                       (var-decl-map-p y))))
           (equal (var-decl-map-fix x)
                  (var-decl-map-fix y)))

    Theorem: var-decl-map-equiv-is-an-equivalence

    (defthm var-decl-map-equiv-is-an-equivalence
            (and (booleanp (var-decl-map-equiv x y))
                 (var-decl-map-equiv x x)
                 (implies (var-decl-map-equiv x y)
                          (var-decl-map-equiv y x))
                 (implies (and (var-decl-map-equiv x y)
                               (var-decl-map-equiv y z))
                          (var-decl-map-equiv x z)))
            :rule-classes (:equivalence))

    Theorem: var-decl-map-equiv-implies-equal-var-decl-map-fix-1

    (defthm var-decl-map-equiv-implies-equal-var-decl-map-fix-1
            (implies (var-decl-map-equiv x x-equiv)
                     (equal (var-decl-map-fix x)
                            (var-decl-map-fix x-equiv)))
            :rule-classes (:congruence))

    Theorem: var-decl-map-fix-under-var-decl-map-equiv

    (defthm var-decl-map-fix-under-var-decl-map-equiv
            (var-decl-map-equiv (var-decl-map-fix x)
                                x)
            :rule-classes (:rewrite :rewrite-quoted-constant))

    Theorem: equal-of-var-decl-map-fix-1-forward-to-var-decl-map-equiv

    (defthm equal-of-var-decl-map-fix-1-forward-to-var-decl-map-equiv
            (implies (equal (var-decl-map-fix x) y)
                     (var-decl-map-equiv x y))
            :rule-classes :forward-chaining)

    Theorem: equal-of-var-decl-map-fix-2-forward-to-var-decl-map-equiv

    (defthm equal-of-var-decl-map-fix-2-forward-to-var-decl-map-equiv
            (implies (equal x (var-decl-map-fix y))
                     (var-decl-map-equiv x y))
            :rule-classes :forward-chaining)

    Theorem: var-decl-map-equiv-of-var-decl-map-fix-1-forward

    (defthm var-decl-map-equiv-of-var-decl-map-fix-1-forward
            (implies (var-decl-map-equiv (var-decl-map-fix x)
                                         y)
                     (var-decl-map-equiv x y))
            :rule-classes :forward-chaining)

    Theorem: var-decl-map-equiv-of-var-decl-map-fix-2-forward

    (defthm var-decl-map-equiv-of-var-decl-map-fix-2-forward
            (implies (var-decl-map-equiv x (var-decl-map-fix y))
                     (var-decl-map-equiv x y))
            :rule-classes :forward-chaining)

    Theorem: cons-of-wire-fix-v-under-var-decl-map-equiv

    (defthm cons-of-wire-fix-v-under-var-decl-map-equiv
            (var-decl-map-equiv (cons (cons acl2::k (wire-fix acl2::v))
                                      x)
                                (cons (cons acl2::k acl2::v) x)))

    Theorem: cons-wire-equiv-congruence-on-v-under-var-decl-map-equiv

    (defthm
         cons-wire-equiv-congruence-on-v-under-var-decl-map-equiv
         (implies (wire-equiv acl2::v v-equiv)
                  (var-decl-map-equiv (cons (cons acl2::k acl2::v) x)
                                      (cons (cons acl2::k v-equiv) x)))
         :rule-classes :congruence)

    Theorem: cons-of-var-decl-map-fix-y-under-var-decl-map-equiv

    (defthm cons-of-var-decl-map-fix-y-under-var-decl-map-equiv
            (var-decl-map-equiv (cons x (var-decl-map-fix y))
                                (cons x y)))

    Theorem: cons-var-decl-map-equiv-congruence-on-y-under-var-decl-map-equiv

    (defthm
        cons-var-decl-map-equiv-congruence-on-y-under-var-decl-map-equiv
        (implies (var-decl-map-equiv y y-equiv)
                 (var-decl-map-equiv (cons x y)
                                     (cons x y-equiv)))
        :rule-classes :congruence)

    Theorem: var-decl-map-fix-of-acons

    (defthm
         var-decl-map-fix-of-acons
         (equal (var-decl-map-fix (cons (cons acl2::a acl2::b) x))
                (let ((rest (var-decl-map-fix x)))
                     (if (and (svar-p acl2::a))
                         (let ((fty::first-key acl2::a)
                               (fty::first-val (wire-fix acl2::b)))
                              (cons (cons fty::first-key fty::first-val)
                                    rest))
                         rest))))

    Theorem: hons-assoc-equal-of-var-decl-map-fix

    (defthm
         hons-assoc-equal-of-var-decl-map-fix
         (equal (hons-assoc-equal acl2::k (var-decl-map-fix x))
                (let ((fty::pair (hons-assoc-equal acl2::k x)))
                     (and (svar-p acl2::k)
                          fty::pair
                          (cons acl2::k (wire-fix (cdr fty::pair)))))))

    Theorem: var-decl-map-fix-of-append

    (defthm var-decl-map-fix-of-append
            (equal (var-decl-map-fix (append std::a std::b))
                   (append (var-decl-map-fix std::a)
                           (var-decl-map-fix std::b))))

    Theorem: consp-car-of-var-decl-map-fix

    (defthm consp-car-of-var-decl-map-fix
            (equal (consp (car (var-decl-map-fix x)))
                   (consp (var-decl-map-fix x))))