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Programming Paradigms
Introduction to Functional Programming in Scheme
The equivalent meaning of let

We will here understand the underlying, equivalent form of a let name binding construct



 
(let ((n<sub>1</sub> e<sub>1</sub>)
       ...
      (n<sub>k</sub> e<sub>k</sub>))
    body-expr)



 
(<font color = "#0000ff" >(lambda (n<sub>1</sub> ... n<sub>k</sub>) body-expr)</font>
   e<sub>1</sub> ... e<sub>k</sub>)

c:/Users/Kurt/Teaching-material/Pp-Scheme-17/notes/includes/how-many-hours-minutes-seconds-with-let.scmAn example of an error in let.


It is now obvious that it is not possible to refer to a name ni from one of the expressions ej