FUZxxl
Reputation
2,229
Next privilege 2,500 Rep.
Create tag synonyms
 May 20 revised A question on logic - where intuition can fail fix syntax May 20 comment A question on logic - where intuition can fail $\overline A = \lnot A$. It's just another syntax for negation. May 20 comment A question on logic - where intuition can fail Is $\bigwedge_{x\in\{\}}P(x)$ true? And what about $\bigvee_{x\in\{\}}P(x)$? It is supposed to be false, isn't it? But thank you for that answer. It helped me quite much. May 20 accepted A question on logic - where intuition can fail May 20 asked A question on logic - where intuition can fail May 19 comment Is there an algorithm to find the roots of high-order polynomials? My question was, if the polynomial is expressable in terms of radicals, is it possible to give an algorithm to find them? May 18 comment Is there an algorithm to find the roots of high-order polynomials? I read the article and think, that you can certainly show that a polynomial's roots are describable in terms of radicands using the Galois Theory, but it doesn't explains you how to find them. May 18 asked Is there an algorithm to find the roots of high-order polynomials? May 10 comment Closed form for the sequence defined by $a_0=1$ and $a_{n+1} = a_n + a_n^{-1}$ I just tried to understand this answer again, but I didn't understood, why \$2n+1+\sum_{0\le k