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Nat-result

Nat-resultp

Recognizer for nat-result structures.

Signature
(nat-resultp x) → *

Definitions and Theorems

Function: nat-resultp

(defun nat-resultp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'nat-resultp))
    (declare (ignorable __function__))
    (cond ((natp x) (b* ((get x)) (natp get)))
          (t (b* ((get x)) (fty::reserrp get))))))