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(: Test: K-SeqExprCast-53                                :)
(: Written by: Frans Englich                             :)
(: Date: 2006-10-05T18:29:37+02:00                       :)
(: Purpose: A test whose essence is: `true() cast as xs:untypedAtomic instance of xs:untypedAtomic`. :)
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true() cast as xs:untypedAtomic instance of xs:untypedAtomic