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 car ,  cdr ,  cons : Fundamental Functions

In Lisp,  car ,  cdr , and  cons are fundamental functions. The  cons function is used to construct lists, and the  car and  cdr functions are used to take them apart.

In the walk through of the  copy-region-as-kill function, we will see  cons as well as two variants on  cdr , namely,  setcdr and  nthcdr . (See section  copy-region-as-kill .)

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