62.57 IsCommutative for near-rings

IsCommutative( nr )

A near-ring (N,+,cdot) is called commutative if its multiplicative semigroup is commutative.

The function IsCommutative returns the according value true or false.

  gap> IsCommutative( LibraryNearring( "C15", 1235 ) );       
  false
  gap> IsCommutative( LibraryNearring( "V4", 13 ) );   
  true

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