Elias Costa
I have a predilection for unusual relationships between theorems.
I like to discover elegant proofs by unconventional ways
Naive questions are a great opportunity to share knowledge.
The accuracy is inherent in mathematics.
How to prove that a compact set in a Hausdorff topological space is closed?
how to prove $(-1)\cdot(-1)=1$ based only on the field axioms?
"An expert is a man who has made all the mistakes, which can be made, in a very narrow field."
Niels Bohr
"A good stack of examples, as large as possible, is indispensable for a thorough understanding of any concept, and when I want to learn something new, I make it my first job to build one."
Paul Halmos
"Information: the negative reciprocal value of probability."
Claude Shannon
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Brasília, DF, Brasil
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Member for 9 years, 3 months
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Last seen Feb 24 at 12:14
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