
What is infinity divided by infinity? - Mathematics Stack Exchange
Aug 11, 2012 · I know that $\\infty/\\infty$ is not generally defined. However, if we have 2 equal infinities divided by each other, would it be 1? if we have an infinity divided by another half-as …
Uncountable vs Countable Infinity - Mathematics Stack Exchange
My friend and I were discussing infinity and stuff about it and ran into some disagreements regarding countable and uncountable infinity. As far as I understand, the list of all natural …
calculus - Infinite Geometric Series Formula Derivation
Infinite Geometric Series Formula Derivation Ask Question Asked 12 years, 6 months ago Modified 4 years, 8 months ago
How can Cyclic groups be infinite - Mathematics Stack Exchange
Oct 4, 2020 · I am a little confused about how a cyclic group can be infinite. To provide an example, look at $\\langle 1\\rangle$ under the binary operation of addition. You can never …
Partitioning an infinite set - Mathematics Stack Exchange
Dec 1, 2010 · Can you partition an infinite set, into an infinite number of infinite sets?
I have learned that 1/0 is infinity, why isn't it minus infinity?
An infinite number? Kind of, because I can keep going around infinitely. However, I never actually give away that sweet. This is why people say that 1 / 0 "tends to" infinity - we can't really use …
When does it make sense to say that something is almost infinite?
4 If "almost infinite" makes any sense in any context, it must mean "so large that the difference to infinity doesn't matter." One example where this could be meaningful is if you have parallel …
Algebra - Infinite Dihedral Group - Mathematics Stack Exchange
The subgroup of $G$ generated by $r$ and $t$ is called the infinite dihedral group and denoted by $D_ {\infty}$. Note that this information describes an action of $D_ {\infty}$ on $\Re$.
Prove there exists no uniform distribution on a countable and …
A countably infinite sample space $\Omega$ is such that there exists a bijective function between $\Omega$ and $\mathbb {N}$, the natural numbers. A non-countable infinite sample space is …
functional analysis - The Weak topology on an infinite-dimensional ...
Aug 2, 2015 · Looks correct to me (even though I'm not fully sure whether the results you cite hold for arbitrary infinite-dimensional normed spaces or just Banach ones). In fact, something …