Tensor product of quotient rings
133884
A proof using Yoneda lemma
33283
Every Artinian ring is isomorphic to a direct product of Artinian local rings
105170
About product of $k$ commutators
118781
product of ideals in matrix ring
105913
Calculations in quotient rings
133238
Why does $\mathrm{Tor}_0^R(M,N)\cong M\otimes_R N$?
158232
Tensor product of a module with an ideal is isomorphic to their standard product
107821
The ring of integers of $\mathbf{Q}[i]$
24259
Quotient ring of $T/I$
102072
Simple $M_n(D)$-module with $D$ a division ring
88307
Commutative property of ring addition
37960
Zero Divisors in Direct Product of Rings
130814
Quotient of semi-simple rings
72295
A difficulty in understanding the proof of distributivity of tensor products over direct sums for modules.
29019
Ideals in direct product of rings
91294
order of quotient ring
147157
Modules over commutative rings