3 Matching Annotations
- May 2022
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cs3110.github.io cs3110.github.io
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Since e1 |> e2 is just another way of writing e2 e1, we don’t need to state the semantics for |>: it’s just the same as function application.
So, |> is the composition operator (or combinator).
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The identity function
Aka the identity I combinator.
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They are syntactically different but semantically equivalent.
In other words they have isomorphic function definitions as their resulting type signature is identical.
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