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15 votes

Is this way of teaching how to solve equations dangerous somehow?

12 votes

Is $\lhd$ common notation for "is an ideal of"?

8 votes

A program to draw simple geometry (points, lines, dotted lines etc.)

8 votes

Why do mathematicians use single-letter variables?

4 votes

Inherently discrete concepts

3 votes

What's the difference between a monoid and a group?

2 votes
Accepted

How can I relearn basic math, after failing first-year calculus and forgetting math?

2 votes

Order of operations term

1 vote

What books can help me master the exercises in Rudin's Principles of Mathematical Analysis?

1 vote
Accepted

Wording of coset

1 vote

$\mathcal{R}$-relation in full transformation semigroup

1 vote

Semigroup with exactly one left(right) identity?

0 votes

How to prove that if $A\cap B' =\varnothing$ then $A \subseteq B$?

0 votes

Prove that a Subgroup is Normal

0 votes

What can we conclude about $a$ if $a^2=a$ in a monoid or semigroup?

0 votes

Does the word 'distinct' in the definition of Set implies an equivalence relation between the objects of the collection?