[sc34wg3] TMQL: Navigation "traverse"

[Lars Heuer]

Comments against TMQL draft dtd. 2008-07-15.

4.4 Navigation
==============

traverse
--------

    "[...] whereby the incoming topic is deducted once from that
    sequence [...]"

I wonder why "once" is mentioned: If the incoming topic is deducted
(does not appear at all) from the sequence, "once" should be removed.
In case the "once" is intentional: Why should the topic which plays n
roles occur n - 1 times in the sequence?


Best regards,
Lars
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Semagia 
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