> (require (lib "trace.ss"))

     > (trace integers-from-to)
     (integers-from-to)

     > (integers-from-to 1 5)
     |(integers-from-to 1 5)
     | (integers-from-to 2 5)
     | |(integers-from-to 3 5)
     | | (integers-from-to 4 5)
     | | |(integers-from-to 5 5)
     | | | (integers-from-to 6 5)
     | | | ()
     | | |(5)
     | | (4 5)
     | |(3 4 5)
     | (2 3 4 5)
     |(1 2 3 4 5)
     (1 2 3 4 5)