W3C home > Mailing lists > Public > public-rdf-shapes@w3.org > February 2017

Re: wrong name for exactly one

From: Holger Knublauch <holger@topquadrant.com>
Date: Thu, 16 Feb 2017 09:37:45 +1000
To: public-rdf-shapes@w3.org
Message-ID: <90b18bec-ce20-0773-a5b4-81f4d2ac04cb@topquadrant.com>
The WG has decided to rename sh:xor to sh:xone, as a shortcut for 
"exactly one".


On 15/02/2017 3:14, Peter F. Patel-Schneider wrote:
> If there has to be an explanation that the name chosen for something means
> something else everywhere else, then the wrong name has been chosen.
> >From 4.6.4 sh:xor
> "Note that despite the name, the semantics of sh:xor for cases with 3 or more
> shapes are different from an exclusive or in the mathematical sense. The
> general definition of exclusive or makes it true only when an odd number of
> inputs are true, while the SHACL definition of sh:xor relies on exactly one
> semantics."
> Peter F. Patel-Schneider
> Nuance Communications
Received on Wednesday, 15 February 2017 23:38:49 UTC

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