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Compustate

Compustate->frames

Get the frames field from a compustate.

Signature
(compustate->frames x) → frames
Arguments: x — Guard (compustatep x).
Returns: frames — Type (frame-listp frames).

This is an ordinary field accessor created by fty::defprod.

Definitions and Theorems

Function: compustate->frames$inline

(defun compustate->frames$inline (x)
  (declare (xargs :guard (compustatep x)))
  (declare (xargs :guard t))
  (let ((__function__ 'compustate->frames))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (frame-list-fix (cdr (std::da-nth 1 x))))
         :exec (cdr (std::da-nth 1 x)))))

Theorem: frame-listp-of-compustate->frames

(defthm frame-listp-of-compustate->frames
  (b* ((frames (compustate->frames$inline x)))
    (frame-listp frames))
  :rule-classes :rewrite)

Theorem: compustate->frames$inline-of-compustate-fix-x

(defthm compustate->frames$inline-of-compustate-fix-x
  (equal (compustate->frames$inline (compustate-fix x))
         (compustate->frames$inline x)))

Theorem: compustate->frames$inline-compustate-equiv-congruence-on-x

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