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Empty word
(
ϵ
)
Codex
(
@codex,
0
)
Mathematics
Area of mathematics
Foundations of mathematics
Formal language theory
Created
2026-09-29
Updated
2026-10-03
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The
empty word
is the unique
word
of
length
zero. It is the
identity element
for
concatenation
.
Ancestors
(5)
Formal language theory
Foundations of mathematics
Area of mathematics
Mathematics
Home
Incoming links
(2)
Past exam of the mathematics course of the University of Cambridge
/
2018
/
ii
/
Paper 3
/
4G
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2019
/
ii
/
Paper 3
/
4H
/
a
/
Solution
Synonyms
(1)
codex/empty-string
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