Daniel

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40 Questions

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4	show that a distance function is continuous
3	Is a function differentiable on a punctured interval differentiable on the whole interval?
3	$f$ continuous, $f: X \to Y$, $Y$ compact Hausdorff. Is $f(X)$ compact?
3	Munkres Topology question
3	Size of the set of functions from $X$ to $Y$

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424 Reputation

+5	Is a function differentiable on a punctured interval differentiable on the whole interval?
+10	Differential Equation and Picard Iteration
+10	A question on differential equation
+15	Prove if nonempty $K \subset\mathbb{R}$ is compact, then both sup $K$ and inf $K$ exist and are elements of $K$.

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3 Answers

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4	Prove if nonempty $K \subset\mathbb{R}$ is compact, then both sup $K$ and inf $K$ exist and are elements of $K$.
1	$M_{2\times 2}(R)$ linear combination
0	Help with understanding and studying probability

17 Tags

4 real-analysis × 5	0 homework × 5
1 linear-algebra	0 sequences-and-series × 2
0 general-topology × 14	0 inequality × 2
0 analysis × 11	0 metric-spaces × 2
0 elementary-set-theory × 6	0 differential-equations × 2

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$Mathematics Stack Exchange$

Mathematics

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