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<body><div>On Sat, May 10, 2014, at 07:32 AM, Roelof Wobben wrote:<br></div>
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So somthing is wrong at this line x n = n * n <br></div>
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But its looking well to me.<br></div>
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<div>That line would be fine as a definition at the top level. But to nest a definition inside an expression, you need to introduce it with "let" or "where".<br></div>
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<div>-Karl</div>
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