User CL40

5 votes

3 answers

350 views

Understanding why the author chose the number he did in this proof that $\sqrt 2$ exists

asked Feb 3, 2019 at 10:18

4 votes

3 answers

66 views

Understanding why a limit proof using another limit works

asked Feb 15, 2019 at 3:31

3 votes

3 answers

3k views

Proving an infimum using the archimedean property of R

asked Feb 2, 2019 at 5:32

3 votes

2 answers

96 views

Confused about first order ODE solution using quadratic equation

asked Jan 21 at 5:40

3 votes

3 answers

391 views

Disproving two decimal representation rebuttal of Cantor's Diagonal Argument

asked Feb 6, 2019 at 6:32

2 votes

3 answers

655 views

Does equal sizes of two sets imply they have the same cardinality in general?

asked Feb 5, 2019 at 4:56

2 votes

1 answer

801 views

Confusion in understanding non-simple polygons

asked Jan 5, 2020 at 1:33

1 vote

2 answers

1k views

Multiply a Known Convergent Sequence by a Bounded Sequence

asked Feb 16, 2019 at 3:12

1 vote

1 answer

839 views

Showing the difference of an unbounded sequence and a convergent sequence is unbounded

asked Feb 18, 2019 at 6:45

1 vote

1 answer

175 views

Proving subsequences of a convergent sequence converge to the same limit

asked Feb 21, 2019 at 5:06

1 vote

1 answer

133 views

Average Rate of Change and Arithmetic Mean Equivilence

asked Aug 14, 2018 at 18:16

1 vote

2 answers

124 views

Understanding the Lim infimum and Lim supremum

asked Jan 17, 2019 at 20:23

0 votes

3 answers

257 views

Prove Triangle Inequality for Two Special Cases

asked Jan 24, 2019 at 0:26

0 votes

2 answers

2k views

Proving an Additive Inverse

asked Jan 26, 2019 at 23:40

0 votes

1 answer

30 views

Verify the Convergence of a Series

asked Feb 11, 2019 at 6:27

0 votes

0 answers

284 views

Proving associative property of an infinite convergent series

asked Feb 22, 2019 at 0:22

0 votes

0 answers

29 views

Confused with this application of induction

asked Feb 9, 2020 at 21:43

0 votes

1 answer

79 views

Induction in reverse: For $P(n):x_1\cdots x_n\le\left(\frac{x_1+\cdots+x_n}{n}\right)^n$, if $P(n)$ holds then $P(n-1)$ holds (for $n>1$)

asked May 25, 2021 at 4:57

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18 Questions

Understanding why the author chose the number he did in this proof that $\sqrt 2$ exists

Understanding why a limit proof using another limit works

Proving an infimum using the archimedean property of R

Confused about first order ODE solution using quadratic equation

Disproving two decimal representation rebuttal of Cantor's Diagonal Argument

Does equal sizes of two sets imply they have the same cardinality in general?

Confusion in understanding non-simple polygons

Multiply a Known Convergent Sequence by a Bounded Sequence

Showing the difference of an unbounded sequence and a convergent sequence is unbounded

Proving subsequences of a convergent sequence converge to the same limit

Average Rate of Change and Arithmetic Mean Equivilence

Understanding the Lim infimum and Lim supremum

Prove Triangle Inequality for Two Special Cases

Proving an Additive Inverse

Verify the Convergence of a Series

Proving associative property of an infinite convergent series

Confused with this application of induction

Induction in reverse: For $P(n):x_1\cdots x_n\le\left(\frac{x_1+\cdots+x_n}{n}\right)^n$, if $P(n)$ holds then $P(n-1)$ holds (for $n>1$)