The meaning of $\Bbb R^\Bbb N$
3101
Meaning of a set in the exponent
12764
$\Bbb RP^2$ as the union of a Möbius band and a disc
130159
Meaning of ring notation $\Bbb Z_{(p)}$ in commutative algebra [localization]
128093
Regarding the values that n and r can take in $\binom{n}{r}$
39731
The relation $a\theta_n^Sb$ iff $(\forall x\in S^n)\, xa=xb$.
132470
Does $\mathbb R^2$ contain more numbers than $\mathbb R^1$?
4156
What is $\Bbb R^{\times}$? [unit group, ring to "times" power]
105772
Definition of $\mathbb{R}^\infty$
36044
Show $\Bbb R ^n$ with a finite set removed is still connected.
36878
Prove that $\operatorname{SL}(n,\Bbb R)$ is connected.
123275
Prove $[A,B^n] = nB^{n-1}[A,B]$
12825
Bijection between $2^{\mathbb R}$ and $\mathbb{ R ^ R}$
66272
Is there a common notion of $\mathbb{R}^n$, for non-integer $n$?
156712
Geometrical or Physical significance (interpretation) of the inner-product $\langle A,B \rangle := Trace (AB^t)$ over $M_n(\mathbb R)$
66169
Ring of order $n$ is isomorphic to $\Bbb Z/n\Bbb Z$, with $n$ square-free
96845
Question: Compare the cardinality between the sets $\Bbb R$ and $\Bbb N^{\Bbb N}$
102299
Bijection between $\mathbb{R}^n$ and $\mathbb{R}^m$