And claim that it does not add any expressive power, only more conciseness and that what is reductive is not the BNF rules themselves, but the parsers that are automatically generated from them.
And claim that it does not add any expressive power, only more conciseness does not apply to the grammes I am talking about. Yotr claim is that what is reductive is not the BNF rules themselves, but the parsers that are automatically generated from them.