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Answer by Will Ness for double stream feed to prevent unneeded memoization?

Normally, definition of primes stream in Richard Bird's formulation of the sieve of Eratosthenes is self-referential:import Data.List.Ordered (minus, union, unionAll)ps = 2 : minus [3..] -- `:` is...

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double stream feed to prevent unneeded memoization?

I'm new to Haskell and I'm trying to implement Euler's Sieve in stream processing style.When I checked the Haskell Wiki page about prime numbers, I found some mysterious optimization technique for...

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