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• Nat-option-result

Nat-option-resultp

Recognizer for nat-option-result structures.

Signature

(nat-option-resultp x) → *

Definitions and Theorems

Function: nat-option-resultp

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