Value-optionp
Recognizer for value-option structures.
- Signature
(value-optionp x) → *
Definitions and Theorems
Function: value-optionp
(defun value-optionp (x)
(declare (xargs :guard t))
(cond ((not x) (b* nil t))
(t (b* ((fty::val x)) (valuep fty::val)))))
