List questions from rngs | MathQa

Prove that every rng with a left-side identity has a right-side identity?

Published on 01 Jan 2025 - 19:19

In a ring, how do we prove that a * 0 = 0?

Published on 12 Jan 2025 - 19:10

Ring of even integers considered as module over itself

Published on 02 Jan 2025 - 9:38

Bounding the number of commutative rings with identity of size n

Published on 07 Jan 2025 - 22:56

For $\operatorname{char}(R)=\bar n$ and $\bar m<\bar n$, show that $\bar m\cdot x=0$ is only possible in a "trivial" manner.

Published on 29 Dec 2024 - 11:44

Free $R$-module when $R$ is not unital

Published on 12 Jan 2025 - 18:51

Must this rng be a ring?

Published on 12 Jan 2025 - 17:28

defining gcd on rings

Published on 12 Jan 2025 - 17:27

PRNG for compression

Published on 13 Jan 2025 - 6:02

Nontrivial subring with identity of a ring without identity

Published on 02 Jan 2025 - 1:03