Question: Write new versions of cons, car, and cdr that operate on streams. Using them, rewrite the code of the previous exercise to eliminate the calls

Write new versions of cons, car, and cdr that operate on streams. Using them, rewrite the code of the previous exercise to eliminate the calls to delay and force. Note that the stream version of cons will need to avoid evaluating its second argument; you will need to learn how to define macros (derived special forms) in Scheme.

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