When does the dual of $s =s$?
35433
When does a dual of a compound proposition equal itself?
43004
Why are there $|G/G'|$ 1-dimensional representations of $G$?
30178
Homeomorphism $(\mathbb{CP}^1)^m/S_m \overset{\sim}{\to} \mathbb{CP}^m$?
134365
When is this true: If $m^2$ is a multiple of N then m is a multiple of N
149801
prove that $TS = ST$
66866
Algebraic dual of $\mathbb{R}^{\mathbb{N}}$
52118
Where we have used the condition that $ST=TS$, i.e, commutativity?
68014
Prove that $\mathfrak{su}(2)$ is not isomorphic to $\mathfrak{sl}(2,\mathbb R)$
103544
Determine a formula for a dual basis.
81112
Proving that the dual of the $\mathcal{l}_p$ norm is the $\mathcal{l}_q$ norm.
108667
Proof of properties of dual cone
58135
Quotient group $SL(2,\mathbb{R})/SO(2,\mathbb{R})$
111128
The Duals of $l^\infty$ and $L^{\infty}$
65971
Double dual mappings
107163
Proof that $S_3$ isomorphic to $D_3$
131993
Prove that vector space and dual space have same dimension
2667
Given $S \hookrightarrow T$ construct $U ≈ T$ disjoint from $S$ in Z set theory?