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Expr-value-option-result

Expr-value-option-result-kind

Get the kind (tag) of a expr-value-option-result structure.

Signature
(expr-value-option-result-kind acl2::x) → kind
Arguments: acl2::x — Guard (expr-value-option-resultp acl2::x).

Definitions and Theorems

Function: expr-value-option-result-kind$inline

(defun expr-value-option-result-kind$inline (acl2::x)
  (declare (xargs :guard (expr-value-option-resultp acl2::x)))
  (cond ((expr-value-optionp acl2::x) :ok)
        (t :err)))

Theorem: expr-value-option-result-kind-possibilities

(defthm expr-value-option-result-kind-possibilities
  (or (equal (expr-value-option-result-kind acl2::x)
             :ok)
      (equal (expr-value-option-result-kind acl2::x)
             :err))
  :rule-classes
  ((:forward-chaining
        :trigger-terms ((expr-value-option-result-kind acl2::x)))))