example: Illustrate tabulate*/boolean.

example/example.org

@@ -525,6 +525,20 @@ tab
    | #t | #t | #t |
    :END:
 
+   You can tabulate multiple functions taking the same arguments over
+   the same domains together.
+   #+BEGIN_SRC racket :results table drawer
+(tabulate*/boolean `(,(λ (x y) (and x y)) ,(λ (x y) (or x y))))
+   #+END_SRC
+
+   #+RESULTS:
+   :RESULTS:
+   | #f | #f | #f | #f |
+   | #f | #t | #f | #t |
+   | #t | #f | #f | #t |
+   | #t | #t | #t | #t |
+   :END:
+
    Here's how to tabulate the network =simple-bn=, defined at the top
    of this section:
    #+BEGIN_SRC racket :results table drawer :var in-bn=munch-sexp(simple-bn)