test whether a magma has a left identity - Maple Help

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Magma[HasLeftIdentity] - test whether a magma has a left identity

Calling Sequence

HasLeftIdentity( m )

Parameters

m

-

Array; magma represented by its Cayley table

Description

• 

The HasLeftIdentity command determines whether a magma m has a left identity element.  It returns true if m has a left identity element, and returns false' otherwise.

Examples

withMagma:

m:=1|2|2,1|2|3,3|2|2

m:=122123322

(1)

HasLeftIdentitym

true

(2)

See Also

HasIdentity, HasRightIdentity, Magma


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