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Boolean-result

Boolean-result-kind

Get the kind (tag) of a boolean-result structure.

Signature
(boolean-result-kind acl2::x) → kind
Arguments: acl2::x — Guard (boolean-resultp acl2::x).

Definitions and Theorems

Function: boolean-result-kind$inline

(defun boolean-result-kind$inline (acl2::x)
  (declare (xargs :guard (boolean-resultp acl2::x)))
  (let ((__function__ 'boolean-result-kind))
    (declare (ignorable __function__))
    (cond ((booleanp acl2::x) :ok)
          (t :err))))

Theorem: boolean-result-kind-possibilities

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