62.33 IsNearring

IsNearring( obj )

IsNearring returns true if the object obj is a near-ring and false otherwise. This function simply checks if the record component obj.isNear-ring is bound to the value true.

  gap> n := LibraryNearring( "C3", 4 );
  LibraryNearring( "C3", 4 )
  gap> IsNearring( n );
  true
  gap> IsNearring( nr );
  true
  gap> IsNearring( Integers );
  false           # Integers is a ring record, not a near-ring record

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