How To Run SICP Programs in DrScheme Problem Getting a program from SICP to run in DrScheme. Solution Choose the Proper Language In the "Language" menu choose "Choose Language". Click the arrow at PLT and then choose "Pretty Big". Streams SICP? uses a primitive named cons-stream. Paste the following at the top of the definition window to make this primitive available. (require (lib "defmacro.
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