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10 lines
476 B
Text
10 lines
476 B
Text
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In mathematics, a semigroup is an algebraic structure consisting of
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a set together with an associative binary operation. A semigroup
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generalizes a monoid in that there might not exist an identity
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element. It also (originally) generalized a group (a monoid with all
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inverses) to a type where every element did not have to have an
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inverse, thus the name semigroup.
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After uninstalling, run this command to unregister the package from
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the ghc package database: ghc-pkg recache
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