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  <blog_title>オベリスク備忘録</blog_title>
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    <anon>理系メモ</anon>
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  <description>岩波講座「基礎数学」を適当に読み散らしている。「集合と位相１」の第１章を読んだので、感想をば。</description>
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  <provider_name>Hatena Blog</provider_name>
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  <published>2014-01-26 14:11:08</published>
  <title>岩波講座基礎数学「集合と位相１」第１章</title>
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