[OASIS Issue Tracker] (XDI-23) 4.3 $is

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ https://issues.oasis-open.org/browse/XDI-23?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=40545#comment-40545 ] 

Joseph Boyle  commented on XDI-23:
----------------------------------

This dates from when the common root and contextual predicate was () instead of empty string. When we changed, Drummond and Markus chose to leave the inverse contextual predicate as $is(). Since the () symbol is now used nowhere else I think this is anomalous. 

> 4.3 $is
> -------
>
>                 Key: XDI-23
>                 URL: https://issues.oasis-open.org/browse/XDI-23
>             Project: OASIS XRI Data Interchange (XDI) TC
>          Issue Type: Bug
>          Components: XDI Core
>    Affects Versions: 1.0
>            Reporter: Hubert Le Van Gong
>
> $is is for (inversed) relational statements while $is() is for contextual statements.
> Is this correct?
> Why is the distinction needed?



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