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Alice, Bill, Carol, David, and Eleonor went to visit several countries in South America.  Each of them visited three of the following countries:  Argentina, Brazil, Chile, Peru and Uruguay.

Alice did not visit Argentina.

Bill did not visit Brazil.

Carol did not visit Chile.

David did not visit Peru.

Eleonor did not visit Uruguay.

Alice is the only one who visited Brazil.

Only two of them visited Uruguay.

Name the three countries each of them visited.



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Bits and Beyond...


Fermat's Last Theorem is one of the famous problems of Mathematics.  This problem was formulated by Pierre de Fermat before his death.  He was a lawyer by profession, who enjoyed spending his leisure time studying mathematics.  This problem when restated is:

If n is a whole number greater than 2, then there are no whole numbers a, b, c such that

an + bn = cn.

For over 350 years, the proof or disproof of this conjecture occupied the minds of mathematicians.  In fact, several more important or useful theories were derived in the effort to prove this theorem.  It was in the recent years that Andrew Wiles, a mathematician from Princeton, proved this theory in a work consisting of more than 200 pages.


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