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Symbol-value-option

Symbol-value-optionp

Recognizer for symbol-value-option structures.

Signature
(symbol-value-optionp x) → *

Definitions and Theorems

Function: symbol-value-optionp

(defun symbol-value-optionp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'symbol-value-optionp))
    (declare (ignorable __function__))
    (cond ((not x) (b* nil t))
          (t (b* ((fty::val x))
               (symbol-valuep fty::val))))))