topology

(structure) collection of open subsets of a topological space

Wikidata entity: Q18786106

P2534	defining formula	Math	$\begin{aligned} \emptyset, 𝒳 \in 𝒯 \\ ⋃_{i \in I} U_{i} \in 𝒯 \forall U_{i} \in 𝒯 \\ ⋂_{i = 1}^{n} U_{i} \in 𝒯 \forall n \in ℕ, \forall U_{i} \in 𝒯 \end{aligned}$	???
P1889	different from	...	Q42989 (topology)	topology
P7235	in defining formula	Math	$U_{i}$	???
P7235	in defining formula	Math	$𝒯$	???
P7235	in defining formula	Math	$𝒳$	???
P6104	maintained by WikiProject	...	Q8487137 (WikiProject Mathematics)	WikiProject Mathematics
P361	part of	...	Q179899 (topological space)	topological space
P279	subclass of	...	Q26897143 (set system)	set system

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