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[p4-feedback] owl: prefix in OWL functional syntax

Matthew Horridge matthew.horridge at
Fri Nov 15 09:17:12 PST 2013

Hi Tom,

Can you provide an example of where you expect it to be used but it isn’t?



On 15 Nov 2013, at 06:44, Tom Kramer <kramer at> wrote:

> Hello OWL support -
> I am trying to improve my understanding of prefixes in OWL. I am puzzled by observing that the owl: prefix is not used by Protege in functional syntax notation. I spent about an hour looking for any documentation of this and found none. I have two hypotheses:
> 1. The owl: prefix is required in functional syntax notation but Protege does not use it (neither does the Manchester syntax converter). In fact, Protege does not allow it, except that a Prefix declaration of owl: is allowed.
> 2. The owl: prefix is not allowed in functional syntax notation (except, possibly, that a Prefix declaration of owl: is allowed) but that is not documented.
> Is either of these correct? If not, what is?
> Thanks.
> Tom Kramer
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