So if you eliminate the commodities that are rising against the dollar (or insert currency here) and that everyone has to buy you can assert that there is no in

So if you eliminate the commodities that are rising against the dollar (or insert currency here) and that everyone has to buy you can assert that there is no inflation? Is core inflation defined as the things people don't buy that are not currently changing in value? Do you want to add hedonics and substitution?