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Least-number principle
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Area of mathematics
Foundations of mathematics
Mathematical logic
First-order logic
First-order theory
Peano arithmetic
2026-09-28
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Every nonempty
definable set
of
natural numbers
has a
least element. Over the usual
arithmetic
language, this
principle
is equivalent to the induction
scheme
.
Ancestors
(8)
Peano arithmetic
First-order theory
First-order logic
Mathematical logic
Foundations of mathematics
Area of mathematics
Mathematics
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Past exam of the mathematics course of the University of Cambridge
/
2023
/
iii
/
Paper 120
/
2
/
a
/
Solution
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