Josué
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### Questions (109)

 10 If $A$ is compact, is then $f(A)$ compact? 9 Order of an Element Modulo $n$ Divides $\phi(n)$ 7 Uniform Convergence of an Exponential Sequence of Functions 6 Solving a System of Equations of the form $\sum x^k = C$ 6 Show that $a^6-1$ is divisible by $168$ whenever $(a,42)=1$.

### Reputation (1,847)

 +10 Continuity Rewritten: $\forall\delta>0,\exists\varepsilon>0\dots$ +2 How can I solve this system of linear equations? +5 What is the meaning of the double absolute value bars in this context? +2 Converge the sequence $\left(\left(1+\frac{1}{n}\right) \left(1+\frac{2}{n}\right)\cdots\left(1+\frac{n}{n}\right)\right)^{1/n}$

 8 What was the book that opened your mind to the beauty of mathematics? 7 What do the $+,-$ mean in limit notation, like$\lim\limits_{t \to 0^+}$ and $\lim\limits_{t \to 0^-}$? 6 Definite integral from $0$ to $t$ of $t$ wrt. $s$ 5 Question about the $\epsilon-\delta$ definition of continuity of function 4 The question about the word of “Mathematics”.

### Tags (58)

 18 calculus × 12 4 elementary-number-theory × 29 12 limits × 2 4 combinatorics × 5 7 notation × 5 3 differential-equations × 8 7 integration × 2 3 elementary-set-theory × 3 5 real-analysis × 35 3 proof-writing

### Accounts (4)

 Mathematics 1,847 rep 1133 Stack Overflow 1,312 rep 721 Physics 113 rep 4 Japanese Language 106 rep 2