(integer-valued? 1) = #t  OK
(integer-valued? (rational 2 2)) = #t  OK
(integer-valued? (rational 2 3)) = #f  OK
(integer-valued? 1.0) = #t  OK
(integer-valued? 1.5) = #f  OK
(integer-valued? (complex 1.0 0.0)) = #t  OK
(integer-valued? (complex 1.5 0.0)) = #f  OK
(integer-valued? (complex 1.0 2.0)) = #f  OK
(real-valued? 1) = #t  OK
(real-valued? (rational 2 2)) = #t  OK
(real-valued? (rational 2 3)) = #t  OK
(real-valued? 1.0) = #t  OK
(real-valued? 1.5) = #t  OK
(real-valued? (complex 1.0 0.0)) = #t  OK
(real-valued? (complex 1.5 0.0)) = #t  OK
(real-valued? (complex 1.0 2.0)) = #f  OK
(rational-valued? 1) = #t  OK
(rational-valued? (rational 2 2)) = #t  OK
(rational-valued? (rational 2 3)) = #t  OK
(rational-valued? 1.0) = #t  OK
(rational-valued? 1.5) = #f  OK
(rational-valued? (complex 1.0 0.0)) = #t  OK
(rational-valued? (complex 1.5 0.0)) = #f  OK
(rational-valued? (complex 1.0 2.0)) = #f  OK
