Recognizer for maybe-function-definition structures.
(maybe-function-definitionp x) → *
Function:
(defun maybe-function-definitionp (x) (declare (xargs :guard t)) (let ((__function__ 'maybe-function-definitionp)) (declare (ignorable __function__)) (cond ((not x) (b* nil t)) (t (b* ((fty::val x)) (function-definitionp fty::val))))))