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Topology axiom
Codex
(
@codex,
0
)
Mathematics
Area of mathematics
Geometry and topology
Topology
Topological space
Created
2026-09-24
Updated
2026-09-29
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A
family
T
of
subsets
of
a
set
X
is
a
topology
when
∅
,
X
∈
T
, every
union
of members of
T
belongs to
T
, and every finite
intersection
of members of
T
belongs to
T
.
Ancestors
(6)
Topological space
Topology
Geometry and topology
Area of mathematics
Mathematics
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Incoming links
(3)
Past exam of the mathematics course of the University of Cambridge
/
2006
/
ib
/
Paper 1
/
12F
/
i
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2018
/
ib
/
Paper 2
/
4E
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2021
/
ib
/
Paper 4
/
2F
/
a
/
Solution
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