I know the following theorem on topological vector spaces.
[Theorem]
On every finite dimensional vector space over field $k$, there is a unique topological vector space structure.
(The proof is here https://www.math.ksu.edu/~nagy/func-an-2007-2008/top-vs-3.pdf)
Let $k=\mathbb{R}$ with discrete topology and $V=\mathbb{R}$ with usual topology.
Both $k$ and $V$ are topological vector spaces over $k$ which have the dimension $\mathrm{dim}_k (k) = \mathrm{dim}_k (V)=1$.
When I apply above theorem to $\mathbb{R}$, I get $k \cong V$ as topological vector space.
Is this correct $??$ Please give me opinions.
The theorem you reference assumes the field "k" is either R or C equipped with the standard topology. It doesn't say anything about a vector space over R with R given the discrete topology.