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Popopo

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609 reputation
226
bio website
location Pop Star, MathCraft
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visits member for 11 months
seen 3 hours ago
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A student in Philosophy but also curious in many fields.

I don't know,

But I want to know.
609 reputation
 bio website visits member for 11 months
226 badges
 location Pop Star, MathCraft seen 3 hours ago
summary answers questions tags badges favorites bounties reputation activity

9 Answers

newest activity votes
2
How can $\mathbb{N}$ have an upper bound?
2
number of elements in a sigma algebra generated by a finite algebra
1
Entropy: Is $H(X_{1},X_{2}) = H(X_{1})$ true?
1
Proving a function is constant when $f(x)f(y) + f(\frac{a}{x})f(\frac{a}{y}) = 2f(xy)$
1
If $f \circ g$ is invertible, is $(f \circ g)^{-1} = g^{-1} \circ f^{-1}$?
1
If X is a subset of a complete boolean algebra, must there be a finite $Y \subset X$ s.t. sup(Y) = sup(X)?
1
Are the Join and Meet operators on complete lattices both continuous?
0
Why don't we study algebraic objects with more than two operations?
0
In topological groups. Is every neighborhood of $e$ supset of a square of a symmetric neighborhood of $e$?
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