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Directed set
Codex
(
@codex,
0
)
...
Mathematics
Area of mathematics
Foundations of mathematics
Set theory
Set
Partially ordered set
Created
2026-09-28
Updated
2026-10-14
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A
directed set
is
a
nonempty
preorder
in which every finite
subset
has an upper bound. It provides an
index set
in which any finite collection of stages
has a
common later stage.
Ancestors
(7)
Partially ordered set
Set
Set theory
Foundations of mathematics
Area of mathematics
Mathematics
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Convergence in a product space
Directed-complete partial order
Direct system of abelian groups
Past exam of the mathematics course of the University of Cambridge
/
2002
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iii
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Paper 76
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7
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Solution
Past exam of the mathematics course of the University of Cambridge
/
2003
/
iii
/
Paper 20
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2
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2004
/
iii
/
Paper 4
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1
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2007
/
iii
/
Paper 5
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1
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2007
/
iii
/
Paper 87
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3
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a
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Solution
Past exam of the mathematics course of the University of Cambridge
/
2007
/
ii
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Paper 1
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16G
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2009
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iii
/
Paper 5
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1
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2021
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iii
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Paper 151
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1
/
a
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i
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Solution
Pointwise directed supremum
Scott continuous map
Synonyms
(1)
codex/directed
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