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Xodarap
  • Member for 12 years, 1 month
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35 votes
2 answers
3k views

Rubik's Cube Not a Group?

26 votes
2 answers
4k views

Why do we use this definition of "algebraic integer"?

15 votes
3 answers
2k views

Order of some quotient ring of Gaussian integers [duplicate]

14 votes
2 answers
13k views

Proof of the polynomial division algorithm

14 votes
5 answers
8k views

What does it mean to do MLE with a continuous variable

11 votes
3 answers
2k views

$F[x]/(x^2)\cong F[x]/(x^2 - 1)$ if and only if F has characteristic 2

11 votes
1 answer
979 views

Does Newton's method for inverting a series work?

11 votes
4 answers
3k views

What are the generators of $(\mathbb{R},+)$?

11 votes
3 answers
797 views

Reverse Polish notation in (abstract) algebra

10 votes
2 answers
2k views

Are all multiplicative functions additive?

9 votes
1 answer
375 views

How do Mathematicians send email? [closed]

8 votes
2 answers
453 views

Existence of a utility function on the reals

8 votes
3 answers
1k views

Why is "glide symmetry" its own type?

8 votes
3 answers
403 views

"Great Theorems" references

8 votes
2 answers
410 views

Countability of irrationals

7 votes
1 answer
647 views

Is there a division algorithm for any Euclidean Domain?

7 votes
2 answers
857 views

RACs can solve the halting problem?

7 votes
3 answers
288 views

A simple question about Galois groups

7 votes
2 answers
686 views

Theoretical basis for overfitting

7 votes
1 answer
1k views

Name of "De Moivre's equation"

7 votes
3 answers
1k views

Embedding torsion-free abelian groups into $\mathbb Q^n$?

6 votes
1 answer
245 views

Turning preorders into partial orders

6 votes
1 answer
2k views

What is a subdirect product?

6 votes
1 answer
209 views

Generalization of Cauchy's functional equation

6 votes
2 answers
808 views

Cauchy's functional equation for $\mathbb R^n$

6 votes
2 answers
1k views

Faithful representation implies group is cyclic

6 votes
3 answers
3k views

Are there (finite) field extensions which aren't Galois?

6 votes
2 answers
3k views

"Commutative" functions

5 votes
1 answer
170 views

Recursively defined systems are always consistent?

5 votes
1 answer
676 views

Degree of a field extension when compared to the Galois group