[obm-l] Topologia

To: obm-l@xxxxxxxxxxxxxx
Subject: [obm-l] Topologia
From: "Kleber Bastos" <kleber09@xxxxxxxxx>
Date: Mon, 30 Jul 2007 11:15:58 -0300
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Sejam X, Y contidos em R, X ( diferente de 0 ) e Y ( diferente de 0 ).

Mostrar que int ( X ) U int ( Y ) está contido em int ( X U Y ) .

--
Kleber B. Bastos