Is faithful flatness implying $M \otimes_{S^{-1}R} S^{-1}N \cong M \otimes_R N$?
141258
Why does $M \mathbin{\otimes_R} N \cong M_\mathfrak{p} \mathbin{\otimes_{R_\mathfrak{p}}} N$?
16172
My proof of $I \otimes N \cong IN$ is clearly wrong, but where have I gone wrong?
150885
$v \otimes v' = v' \otimes v$ implies $v = av'$
1026
Ring homomorphism with $\phi(1_R) \neq1_S$
63478
Is $\mathbb{Q}(\sqrt{2}) \cong \mathbb{Q}(\sqrt{3})$?
92211
When are $\mathbb Z_m$ and $\mathbb Z_n$ homomorphic?
84114
Does there exist a surjective homomorphism from $(\mathbb R,+)$ to $(\mathbb Q,+)$ ?
73689
A question about the equivalence relation on the localization of a ring.
128701
Are $\mathbb{Q}$ or $\mathbb{Z}$ flat modules?
36987
A criterion of flat modules
38549
$\mathbb{Q}(\sqrt{n}) \cong \mathbb{Q}(\sqrt{m})$ iff $n=m$
72295
A difficulty in understanding the proof of distributivity of tensor products over direct sums for modules.
30404
Is $\mathbb{Z}/3\otimes \mathbb{Z}[1/2]=\mathbb{Z}/3$?
63338
Noncommutative failure of IBN: $\,R^n\cong R^m \Rightarrow n - m,$ ring $R$ with maximal ideal $I$ such that $R/I$ is not a division ring?
43645
Show that $G/H\cong S_3$
114916
$\mathbb Z_{mn}$ isomorphic to $\mathbb Z_m\times\mathbb Z_n$ whenever $m$ and $n$ are coprime
11342
Show that conguence $\bmod m\,$ is an equivalence relation