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Nat-result

Nat-result-kind

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

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

Definitions and Theorems

Function: nat-result-kind$inline

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

Theorem: nat-result-kind-possibilities

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