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11
votes
1answer
468 views

Can Scheme's call/cc implement all known control flow structures?

The page "Advanced Scheme: Some Naughty Bits" states: Continuations are a powerful control-flow construct from which nearly any other control-flow structure [...] may be derived. I thought ...
13
votes
1answer
272 views

Is contextual equivalence of a language with `quote`-`eval` trivial or not?

In [1], Mitchell Wand demonstrated that adding fexprs to the pure lambda calculus trivializes the theory of contextual equivalence, meaning two terms are contextually equivalent iff they are ...
4
votes
2answers
198 views

Mathematical explanation of recursion and lambda (referenced in The Little Schemer)

In the preface of Friedman and Felleisen's book The Little Schemer it states: We could, for example, describe the entire technical content of this book in less than a page of mathematics, but a ...