It does pose an interesting question though, because in my case surely
Race/RaceType >= 'R' and Race/RaceType <= 'R'
AND
Race/RaceType >= 'R' or Race/RaceType <= 'R'
would do the same?
no the first is true just if both branches are true, and the second is
true if either branch is true.
Which is fine in the XSLT world but try
explaining that to the logic gurus!
the operators follow standard propositional calculus here, so long as
you remember that
sequence operator value
means
exists x in sequence such that x operator value.
so in your case
Race/RaceType >= 'R'
means (and could be written in xpath as)
some $r in Race/RaceType satisfies ($r >= 'R')
David
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