[obm-l] sequencia

To: obm-l@xxxxxxxxxxxxxx
Subject: [obm-l] sequencia
From: Klaus Ferraz <klausferraz@xxxxxxxxxxxx>
Date: Sat, 11 Feb 2006 13:58:40 +0000 (GMT)
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Prove que para todo n. n E N --> 1+1/2+1/3*...*1/(2^n-1)>n/2