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(: Test: K-SeqIndexOfFunc-12                             :)
(: Written by: Frans Englich                             :)
(: Date: 2006-10-05T18:29:40+02:00                       :)
(: Purpose: A test whose essence is: `index-of(4, 4) eq 1`. :)
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index-of(4, 4) eq 1