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visits member for 2 years, 1 month
seen 52 mins ago

I was born to answer lhfs.


Dec
22
answered Prove every odd integer is the difference of two squares
Dec
22
accepted Is a counterexample considered a rigorous proof that a property is not true?
Dec
22
answered Books in foundations of mathematical logic
Dec
22
revised Is a counterexample considered a rigorous proof that a property is not true?
added mathjax; fancy quotes
Dec
22
suggested suggested edit on Is a counterexample considered a rigorous proof that a property is not true?
Dec
22
answered Given real numbers: define integers?
Dec
22
comment Is a counterexample considered a rigorous proof that a property is not true?
+1 Love it! :-)
Dec
22
comment Is a counterexample considered a rigorous proof that a property is not true?
+1 Simple and sweet :)
Dec
22
asked Is a counterexample considered a rigorous proof that a property is not true?
Dec
22
revised How can I algebraically prove that $2^n - 1$ is not always prime?
added 30 characters in body; edited title
Dec
22
accepted How can I algebraically prove that $2^n - 1$ is not always prime?
Dec
22
comment How can I algebraically prove that $2^n - 1$ is not always prime?
@Markbennet: Oh yes, thanks.
Dec
22
comment How can I algebraically prove that $2^n - 1$ is not always prime?
And what would be the factored form of $2^{ab} - 1$? :-) P.S.: Hey Brian!
Dec
22
comment How can I algebraically prove that $2^n - 1$ is not always prime?
I like it :-). So, the main point of our proof is that it is not prime since it has factors.
Dec
22
comment How can I algebraically prove that $2^n - 1$ is not always prime?
It should be a formal proof :)
Dec
22
comment How can I algebraically prove that $2^n - 1$ is not always prime?
It is a proof...
Dec
22
asked How can I algebraically prove that $2^n - 1$ is not always prime?
Dec
22
answered Show that $\gcd(a,b)=|a| \iff a | b$
Dec
21
answered Is zero odd or even?
Dec
21
comment A pencil approach to find $\sum \limits_{i=1}^{69} \sqrt{\left( 1+\frac{1}{i^2}+\frac{1}{(i+1)^2}\right)}$
@Quixotic: Why do I always find you on different sites? :O