Shay Ben Moshe
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 5 $SAS^{-1}=\lambda A$ - show $\lambda^n=1$or A is nilpotent 5 Is every function $f : \mathbb N \to \mathbb N$ a composition $f = g\circ g$? 4 which one is larger $\sqrt[n]{x+\delta}-\sqrt[n]{x}$ or $\sqrt[n]{x}-\sqrt[n]{x-\delta}$? 2 extend a linear function 2 Algebraic solution to: Do the functions $y=\frac{1}{x}$ and $y=x^3$ ever have the same slope?

### Reputation (519)

 +20 extend a linear function +65 $SAS^{-1}=\lambda A$ - show $\lambda^n=1$or A is nilpotent +10 Uses of $\lim \limits_{h\to 0} \frac{f(x+h)-f(x-h)}{2h}$ +15 Does the position of ∃ matter?

### Questions (4)

 25 Uses of $\lim \limits_{h\to 0} \frac{f(x+h)-f(x-h)}{2h}$ 7 Why is $f:\mathbb{R} \to S^1, f(t)=(\cos(2\pi t), \sin(2\pi t))$ not closed? 6 Are there any calculus/complex numbers/etc proofs of the pythagorean theorem? 1 Embedding models of ZF into another model

### Tags (15)

 5 functions 2 limits × 2 5 functional-equations 2 functional-analysis 5 function-composition 1 predicate-logic 5 linear-algebra 0 calculus × 2 4 inequality 0 derivatives

### Accounts (11)

 Stack Overflow 743 rep 721 Mathematics 519 rep 316 Theoretical Computer Science 116 rep 4 MathOverflow 111 rep 4 Physics 108 rep 3