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Magma

  

Identity

  

test whether a finite magma has a (two-sided) identity element

 

Calling Sequence

Parameters

Description

Examples

Compatibility

Calling Sequence

Identity( m )

Parameters

m

-

Array representing the Cayley table of a finite magma

Description

• 

The Identity command returns the identity element of a magma with identity. If the magma has no identity element, an exception is raised.

Examples

withMagma:

m1|2|3,2|3|1,3|1|2

m:=123231312

(1)

Identitym

1

(2)

Compatibility

• 

The Magma[Identity] command was introduced in Maple 15.

• 

For more information on Maple 15 changes, see Updates in Maple 15.

See Also

HasIdentity

Magma

 


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