[plt-scheme] Defining structures

Try:
(define a 'a-symbol)
(set! a 300)
Jos
  ----- Original Message ----- 
  From: aditya shukla 
  To: Grant Rettke 
  Cc: plt edu ; PLT Scheme ML 
  Sent: Wednesday, February 18, 2009 7:52 PM
  Subject: Re: [plt-scheme] Defining structures


  A question that comes to mind if variables in scheme do not have type in scheme thus can be say that

  (define a 9) -here a is a placeholder for a value whose tag is a number

  > (define a 'aditya)
  define: cannot redefine name: a



  why can't we redefine a here?


  Aditya





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