[racket] boolean in PLAI

Dear All,

In plai-typed, an S-expression cannot be a boolean, correct? How can I
parse a boolean? The idea here is to construct a boolean expression when a
boolean is encountered in the input/

-- 

Cheers,

Marco

Have a´¨)
¸.·´¸.·*´¨) ¸.·*¨)
(¸.·´ (¸.·´ * wonderful day! :)
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