Re: Codd and many-valued logics

I also do not remember Codd referencing prior multivalue logics. However, D David McGovern spend some time on this topic. It will be worth googling it. I also posted things on this decades ago. David's work is much much better than mine. He points out of a full logic has to have conference rules. In SQL we have search conditions and resolution rules for the searches; not the same thing exclamation

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Received on Wed Jun 01 2016 - 04:12:15 CEST