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Input-item

Input-item->value

Get the value field from a input-item.

Signature
(input-item->value x) → value
Arguments: x — Guard (input-itemp x).
Returns: value — Type (input-expressionp value).

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

Definitions and Theorems

Function: input-item->value$inline

(defun input-item->value$inline (x)
  (declare (xargs :guard (input-itemp x)))
  (declare (xargs :guard t))
  (let ((__function__ 'input-item->value))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (input-expression-fix (cdr (std::da-nth 2 (cdr x)))))
         :exec (cdr (std::da-nth 2 (cdr x))))))

Theorem: input-expressionp-of-input-item->value

(defthm input-expressionp-of-input-item->value
  (b* ((value (input-item->value$inline x)))
    (input-expressionp value))
  :rule-classes :rewrite)

Theorem: input-item->value$inline-of-input-item-fix-x

(defthm input-item->value$inline-of-input-item-fix-x
  (equal (input-item->value$inline (input-item-fix x))
         (input-item->value$inline x)))

Theorem: input-item->value$inline-input-item-equiv-congruence-on-x

(defthm input-item->value$inline-input-item-equiv-congruence-on-x
  (implies (input-item-equiv x x-equiv)
           (equal (input-item->value$inline x)
                  (input-item->value$inline x-equiv)))
  :rule-classes :congruence)