defining by logical negation

I am working with an EUROSTAT taxonomy which is called HS, standing for Harmonized System (there is nothing harmonized about it, when you are seeing from an international level) and I have several definitions like this:


03056200 - COD 'GADUS MORHUA, GADUS OGAC, GADUS MACROCEPHALUS', SALTED OR IN BRINE ONLY (EXCL. FILLETS)

How is it possible to define something by negation? This is against basic logic. Not fillets can mean thousands of stuff.

If I would say:

I am not dog.

Can you tell if I am a insect or a mammal? And mammals actually do include dogs.

EUROSTAT taxonomy is a joke of and useful only to taxation purposes, thought I will look very carefully before sending my goods under a specific code, as I may found at least 10 more equally unclear that may be taxed lower.

And SSB, Hagstova and Hagstofa are copying this crazy way of doing definitions. John Venn would crucify them all.


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