test whether a magma is a band
IsBand( m )
Array representing the Cayley table of a finite magma
A band is an idempotent semigroup, that is, an associative magma in which the identity XX = X is satisfied.
The IsBand command returns true if the given magma is a band. It returns false otherwise.
The Magma[IsBand] command was introduced in Maple 15.
For more information on Maple 15 changes, see Updates in Maple 15.
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