21/15 PARAMETERS 



is identical with a canonical representation; for it says simply 

 that if the parameters x and the state of the system are given, 

 then the system's next state is determined. Thus the communica- 

 tion engineer, if he were to observe the biologist and the psycho- 

 logist for the first time, would say that they seem to prefer to 

 work with noiseless systems. His remark would not be as trite 

 as it seems, for from it flow the possibilities of rigorous deduction. 



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