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Expr-value

Expr-value->value

Get the value field from a expr-value.

Signature
(expr-value->value x) → value
Arguments: x — Guard (expr-valuep x).
Returns: value — Type (valuep value).

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

Definitions and Theorems

Function: expr-value->value$inline

(defun expr-value->value$inline (x)
  (declare (xargs :guard (expr-valuep x)))
  (declare (xargs :guard t))
  (let ((__function__ 'expr-value->value))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (value-fix (cdr (std::da-nth 0 x))))
         :exec (cdr (std::da-nth 0 x)))))

Theorem: valuep-of-expr-value->value

(defthm valuep-of-expr-value->value
  (b* ((value (expr-value->value$inline x)))
    (valuep value))
  :rule-classes :rewrite)

Theorem: expr-value->value$inline-of-expr-value-fix-x

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

Theorem: expr-value->value$inline-expr-value-equiv-congruence-on-x

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