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Use prisms #3

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passy opened this issue May 3, 2014 · 0 comments

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passy commented May 3, 2014

Pisms are lenses for sum types and can be used to look into Maybes and Eithers: https://www.fpcomplete.com/school/to-infinity-and-beyond/pick-of-the-week/a-little-lens-starter-tutorial

passy added the enhancement label

passy closed this as completed in

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