[obm-l] Álgebra dos conjuntos

To: Obm-l <obm-l@xxxxxxxxxxxxxx>
Subject: [obm-l] Álgebra dos conjuntos
From: admath <admath05@xxxxxxxxxxxx>
Date: Fri, 29 Jul 2005 23:09:31 +0000 (GMT)
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Olá!

Se alguém puder me ajudar no segundo exercício agradeço.

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