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A comment on Swift Functors, Applicatives, and Monads in Pictures. Parent comment

Re:Swift Functors, Applicatives, and Monads in Pictures by lmm on Wednesday July 15, 2015 @12:03PM (#9892062)
Grandparent asked for useful though :P
[ Parent | on HN ]
Re:Swift Functors, Applicatives, and Monads in Pictures by tel on Wednesday July 15, 2015 @03:39PM (#9893579)
Who says Fake isn't useful? It's very useful for stating that nothing can happen :)
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