Quasigroup
In mathematics, especially in abstract algebra, a quasigroup is an algebraic structure resembling a group in the sense that "division" is always possible. Quasigroups differ from groups mainly in that they are not necessarily associative.

A quasigroup with an identity element is called a loop.
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mathematics
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abstract algebra
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algebraic structure
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group
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division
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associative
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Quasigroup
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