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  1. calculus - What is infinity divided by infinity? - Mathematics Stack ...

    Aug 11, 2012 · One advantage of approach (2) is that it allows one to discuss indeterminate forms in concrete fashion and distinguish several cases depending on the nature of numerator and …

  2. calculus - Infinite Geometric Series Formula Derivation

    Infinite Geometric Series Formula Derivation. Ask Question Asked 12 years, 1 month ago. Modified 4 years ...

  3. Proof of infinite monkey theorem. - Mathematics Stack Exchange

    Apr 24, 2015 · The infinite monkey theorem states that if you have an infinite number of monkeys each hitting keys at random on typewriter keyboards then, with probability 1, one of them will …

  4. elementary set theory - What do finite, infinite, countable, not ...

    Clearly every finite set is countable, but also some infinite sets are countable. Note that some places define countable as infinite and the above definition. In such cases we say that finite …

  5. intuition - One divided by Infinity? - Mathematics Stack Exchange

    $\begingroup$ Arithmetic with $\infty$ is usually a convention rather than a piece of mathematics. (For example, some mathematicians (in measure theory) take $\infty\cdot 0 = 0$ and reason …

  6. Does infinite equal infinite? - Mathematics Stack Exchange

    (the principal exception I know of is the extended hyperreal line, which has many infinite numbers obeying the 'usual' laws of arithmetic, and a pair of additional numbers we call $+\infty$ and $ …

  7. Purely infinite $C^*$-algebras - Mathematics Stack Exchange

    Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their …

  8. Is it valid to use an "infinite" number of universal/existential ...

    Dec 14, 2024 · My knowledge of logic is very limited, but I am concerned that this approach of "infinite" instantiations is not valid. Specifically, it feels like I am trying to use an "inductive …

  9. How can I define $e^x$ as the value of infinite series?

    Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their …

  10. Example of infinite field of characteristic $p\\neq 0$

    On the other hand, if we had $\overline{\mathbb{F}_p}\subseteq\mathbb{F}_p(T)$, then we would have that there were some $\frac{f}{g}\in \mathbb{F}_p(T)$ such that …