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Projection map
Codex
(
@codex,
0
)
Mathematics
Area of mathematics
Foundations of mathematics
Set theory
Function
2026-09-28
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A
projection
map
from
a
Cartesian product
selects specified coordinates, for example
p
j
:
∏
i
X
i
→
X
j
with
p
j
((
x
i
)
i
)
=
x
j
.
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Function
Set theory
Foundations of mathematics
Area of mathematics
Mathematics
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Inverse-limit topology
Past exam of the mathematics course of the University of Cambridge
/
2021
/
iii
/
Paper 151
/
1
/
b
/
iv
/
Solution
Product space
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