Lift function-symbolp to lists.
(function-symbol-listp x wrld) → std::bool
We would need stronger world assumptions for
Function:
(defun function-symbol-listp (x wrld) (declare (xargs :guard (and (symbol-listp x) (plist-worldp wrld)))) (let ((__function__ 'function-symbol-listp)) (declare (ignorable __function__)) (if (consp x) (and (function-symbolp (car x) wrld) (function-symbol-listp (cdr x) wrld)) (null x))))