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  • Member for 11 years, 11 months
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41 votes
2 answers
43k views

Lipschitz Continuous $\Rightarrow$ Uniformly Continuous

40 votes
7 answers
22k views

Appropriate Notation: $\equiv$ versus $:=$

21 votes
3 answers
38k views

Proving that a sequence such that $|a_{n+1} - a_n| \le 2^{-n}$ is Cauchy

19 votes
2 answers
34k views

Proof by induction of Bernoulli's inequality $ (1+x)^n \ge 1+nx$

18 votes
2 answers
10k views

Is the conjugation map always an isomorphism?

16 votes
2 answers
13k views

Proof of Non-Ordering of Complex Field

15 votes
2 answers
8k views

Limit point versus limit and implications for convergence

13 votes
2 answers
3k views

"So That" vs. "Such That"

13 votes
5 answers
5k views

Canonical Isomorphism Between $\mathbf{V}$ and $(\mathbf{V}^*)^*$

11 votes
2 answers
6k views

Why is $Q[\pi]$ not a field?

9 votes
1 answer
7k views

Convergence in probability, not almost surely

9 votes
3 answers
1k views

Cardinality of the Union is less than the cardinality of the Cartesian product

9 votes
1 answer
2k views

Weights versus roots

8 votes
5 answers
13k views

Last two digits of $3^{400}$

7 votes
3 answers
24k views

Proof of uniform continuity of $\frac{1}{x}$

7 votes
2 answers
4k views

Subgroups of order $p$ and $p^{n-1}$ in a group of order $p^n$.

6 votes
1 answer
3k views

Character of a permutation representation

6 votes
1 answer
694 views

Connection between Galois trace and matrix trace

6 votes
2 answers
381 views

Factoring $x^{255} -1 $ over $\Bbb F_2$

6 votes
4 answers
260 views

Zero polynomial [duplicate]

6 votes
3 answers
3k views

Existence & uniqueness of solutions of linear congruences $\ cx\equiv b\pmod m$

5 votes
2 answers
484 views

Proofs using linear congruences

5 votes
1 answer
3k views

Proving pointwise convergence to a "Dirichlet-like" function

5 votes
1 answer
3k views

Difference of two Cauchy Sequences

5 votes
1 answer
573 views

Basic identity of characters

5 votes
2 answers
178 views

Binomial coefficients equal to a prime squared

4 votes
1 answer
142 views

How to compute the weights of $\Gamma_{3,1}$ the irrep of $\mathfrak{sl}_3\Bbb C$

4 votes
2 answers
1k views

Verifying prime factorization equivalence class

4 votes
1 answer
379 views

Checking Uniform Convergence

4 votes
3 answers
6k views

Proof With and Without Truth Tables