		Search-engine friendly clone of the ACL2 documentation.

Portdecl-sign

Vl-design-portdecl-sign

Signature
(vl-design-portdecl-sign x) → new-x
Arguments: x — Guard (vl-design-p x).
Returns: new-x — Type (vl-design-p new-x).

Definitions and Theorems

Function: vl-design-portdecl-sign

(defun vl-design-portdecl-sign (x)
 (declare (xargs :guard (vl-design-p x)))
 (let ((__function__ 'vl-design-portdecl-sign))
  (declare (ignorable __function__))
  (b* (((vl-design x)))
    (change-vl-design x
                      :mods (vl-modulelist-portdecl-sign x.mods)))))

Theorem: vl-design-p-of-vl-design-portdecl-sign

(defthm vl-design-p-of-vl-design-portdecl-sign
  (b* ((new-x (vl-design-portdecl-sign x)))
    (vl-design-p new-x))
  :rule-classes :rewrite)

Theorem: vl-design-portdecl-sign-of-vl-design-fix-x

(defthm vl-design-portdecl-sign-of-vl-design-fix-x
  (equal (vl-design-portdecl-sign (vl-design-fix x))
         (vl-design-portdecl-sign x)))

Theorem: vl-design-portdecl-sign-vl-design-equiv-congruence-on-x

(defthm vl-design-portdecl-sign-vl-design-equiv-congruence-on-x
  (implies (vl-design-equiv x x-equiv)
           (equal (vl-design-portdecl-sign x)
                  (vl-design-portdecl-sign x-equiv)))
  :rule-classes :congruence)