Question about negation from Håvard Ottestad on 2019-05-07 (public-shacl@w3.org from May 2019)

From: Håvard Ottestad <hmottestad@gmail.com>
Date: Tue, 7 May 2019 08:56:05 +0200
To: Public Shacl W3C <public-shacl@w3.org>
Message-Id: <AB38A8D3-1BD5-4CD5-99BB-81AAB3F36D44@gmail.com>

Hi,

I am working on implementing negation for the RDF4J ShaclSail. 

The combination uniqueLang and negation got me a little bit confused. 

sh:uniqueLang means that there can be no two different values for a target and path where both values have the same language tag. 

Does sh:not[ sh:path rdfs:label; sh:uniqueLang true ] mean:

 - equivalent to sh:uniqueLang false (eg. ignored)?
 - for any value, there must be a different value with the same language tag?
 - or something else?

Cheers,
Håvard

Received on Tuesday, 7 May 2019 06:56:30 UTC