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Stripping-functions

Vl-maybe-gatedelay-strip

Signature
(vl-maybe-gatedelay-strip x) → new-x
Arguments: x — Guard (vl-maybe-gatedelay-p x).
Returns: new-x — Type (vl-maybe-gatedelay-p new-x).

Definitions and Theorems

Function: vl-maybe-gatedelay-strip

(defun vl-maybe-gatedelay-strip (x)
  (declare (xargs :guard (vl-maybe-gatedelay-p x)))
  (let ((__function__ 'vl-maybe-gatedelay-strip))
    (declare (ignorable __function__))
    (vl-maybe-gatedelay-case
         x :none
         (b* nil
           (change-vl-maybe-gatedelay-none x))
         :some
         (b* ((fty::val (vl-gatedelay-strip x.val)))
           (change-vl-maybe-gatedelay-some x
                                           :val fty::val)))))

Theorem: vl-maybe-gatedelay-p-of-vl-maybe-gatedelay-strip

(defthm vl-maybe-gatedelay-p-of-vl-maybe-gatedelay-strip
  (b* ((new-x (vl-maybe-gatedelay-strip x)))
    (vl-maybe-gatedelay-p new-x))
  :rule-classes :rewrite)

Theorem: vl-maybe-gatedelay-strip-of-vl-maybe-gatedelay-fix-x

(defthm vl-maybe-gatedelay-strip-of-vl-maybe-gatedelay-fix-x
  (equal (vl-maybe-gatedelay-strip (vl-maybe-gatedelay-fix x))
         (vl-maybe-gatedelay-strip x)))

Theorem: vl-maybe-gatedelay-strip-vl-maybe-gatedelay-equiv-congruence-on-x

(defthm
  vl-maybe-gatedelay-strip-vl-maybe-gatedelay-equiv-congruence-on-x
  (implies (vl-maybe-gatedelay-equiv x x-equiv)
           (equal (vl-maybe-gatedelay-strip x)
                  (vl-maybe-gatedelay-strip x-equiv)))
  :rule-classes :congruence)