Construct an XDOC tree for a capitalized printed topic link directive @(csym ...).
Macro:
(defmacro @csym (&rest trees) (list '@csym-fn (cons 'list trees)))
Function:
(defun @csym-fn (trees) (declare (xargs :guard (tree-listp trees))) (make-tree-dir/&& :@csym trees))
Theorem:
(defthm stringp-of-@csym (equal (treep (@csym-fn trees)) (tree-listp trees)))