It is said that blocks in self are close to closures in scheme, so I 
have tried to implement the following:
(define (cond-gen par1)
  (define (parametrized-test par2)
    (= par1 par2))
  parametrized-test)
(define test-if-equals-4 (cond-gen 4))
(test-if-equals-4 4)
and after couple failures gave up.  Does anybody have a solution 
to this problem?
Kuba