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Re: [sdw] OWL-Time - add IANA considerations section (#1138)

From: Chris Little via GitHub <sysbot+gh@w3.org>
Date: Tue, 16 Jul 2019 18:05:55 +0000
To: public-sdwig@w3.org
Message-ID: <issue_comment.created-511924644-1563300354-sysbot+gh@w3.org>
@dr-shorthair . I have been trying to understand why there are 15 rather than the original 13 Allen relations. Is there a reason why para 4 (disjoint) and para 9 (in) are one statement rather than two separate ones, matching the style of all the others? I suppose it gives a kind of symmetry to the other 'edge case' para 6 (equality).
But 4 is covered by cases 1 and 15, and 9 by 5,6,7,8,14 and 15.

Has anyone done any work on the optimal variations of the orginal 13 relations,perhaps including the instant as a special interval?

(It is a bit late in the day and i'm not feeling very smart) Chris

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