8 lines
382 B
Text
8 lines
382 B
Text
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A dependent sum is a generalization of a particular way of thinking about
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the Either type. Either a b can be thought of as a 2-tuple (tag, value),
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where the value of the tag determines the type of the value. In particular,
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either tag = Left and value :: a or tag = Right and value :: b.
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This package allows you to define your own dependent sum types by using
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your own "tag" types.
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