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jwkrahn
You may want to read <a href="http://www.perseusbooksgroup.com/basic/book_detail.jsp?isbn=0465026567">Godel, Escher, Bach</a> and <a href="http://www.perseusbooksgroup.com/basic/book_detail.jsp?isbn=0465024750">Fluid Concepts And Creative Analogies</a> and possibly also <a href="http://en.wikipedia.org/wiki/Metamagical_Themas">Metamagical Themas</a>.
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