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Corrections for quantifier free
1. 'word' should not be an xref in this article by hmackiernan on 2006-12-18 01:03:59 (accepted)
2. Trivial: missing right parenthesis by ChrisX on 2004-01-20 09:58:09 (accepted)
3. unbalanced parens by mps on 2003-05-23 07:57:38 (accepted)

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