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Magma[IsExtra] - test whether a given magma satisfies the extra law
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Calling Sequence
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IsExtra( m )
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Parameters
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m
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Array representing the Cayley table of a finite magma
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Description
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The IsExtra command returns true if the given magma satisfies the extra law ((XY)Z)X = X(Y(ZX)). It returns false otherwise.
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Compatibility
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The Magma[IsExtra] command was introduced in Maple 15.
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Examples
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![m := Matrix([[1, 2, 3], [2, 3, 1], [3, 1, 2]])](/support/helpjp/helpview.aspx?si=8568/file02118/math71.png)
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![m := Matrix([[1, 2, 3], [2, 3, 3], [3, 1, 2]])](/support/helpjp/helpview.aspx?si=8568/file02118/math85.png)
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