Showing that every finite $T_1$-space is discrete
122536
Show that any finite $T_1$-space $X$ is discrete.
128457
Show that $T$ is a compact operator
125073
Finite-dimensional subspaces of normed vector spaces are direct summands
69367
covering map with finite fibres and preimage of a compact set
41611
Open and closed set in n by n matrices space.
12293
Let X be a T1 space, and show that X is normal if and only if each neighbourhood of a closed set F contains the closure of some neighbourhood of F
136094
$G_\delta$ singletons in compact Hausdorff and first countability
48369
discrete subgroups of euclidean space
95862
Prove that $t_{n-1, \alpha/2}$ is strictly decreasing in $n$
29582
Continuous mapping $f: [0,1]\rightarrow (0,1)$ CSIR December $2013$
65098
Number of $\sigma$  -Algebra on the finite set
34964
Recursive representation of closed sets in Baire Space ($\Sigma^1_1$)
95074
Separability of $l^{p}$ spaces
1756
1-point compactification and embedding
137075
If a topology contains all infinite subsets, then it is the discrete topology
24561
$\mathbb S_n$ as semidirect product
127795
$L^1(μ)$ is finite dimensional if it is reflexive