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Wire

Wire->delay

Get the delay field from a wire.

Signature
(wire->delay x) → delay
Arguments: x — Guard (wire-p x).
Returns: delay — Type (maybe-posp delay).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: wire->delay$inline

(defun wire->delay$inline (x)
  (declare (xargs :guard (wire-p x)))
  (declare (xargs :guard t))
  (let ((__function__ 'wire->delay))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (acl2::maybe-posp-fix
                (std::prod-car (std::prod-car (std::prod-cdr x)))))
         :exec (std::prod-car (std::prod-car (std::prod-cdr x))))))

Theorem: maybe-posp-of-wire->delay

(defthm maybe-posp-of-wire->delay
  (b* ((delay (wire->delay$inline x)))
    (maybe-posp delay))
  :rule-classes :type-prescription)

Theorem: wire->delay$inline-of-wire-fix-x

(defthm wire->delay$inline-of-wire-fix-x
  (equal (wire->delay$inline (wire-fix x))
         (wire->delay$inline x)))

Theorem: wire->delay$inline-wire-equiv-congruence-on-x

(defthm wire->delay$inline-wire-equiv-congruence-on-x
  (implies (wire-equiv x x-equiv)
           (equal (wire->delay$inline x)
                  (wire->delay$inline x-equiv)))
  :rule-classes :congruence)