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Single Idea 10603

[filed under theme 6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / f. Mathematical induction ]

Full Idea

If the logic of arithmetic doesn't have second-order quantifiers to range over properties of numbers, how can it handle induction?

Gist of Idea

The logic of arithmetic must quantify over properties of numbers to handle induction

Source

Peter Smith (Intro to Gödel's Theorems [2007], 10.1)

Book Ref

Smith,Peter: 'An Introduction to Gödel's Theorems' [CUP 2007], p.71


The 10 ideas with the same theme [rule to get from axioms to general mathematical truths]:

Induction is proved in Dedekind, an axiom in Peano; the latter seems simpler and clearer [Dedekind, by Russell]
It may be possible to define induction in terms of the ancestral relation [Frege, by Wright,C]
Finite numbers, unlike infinite numbers, obey mathematical induction [Russell]
Denying mathematical induction gave us the transfinite [Russell]
Ordinary or mathematical induction assumes for the first, then always for the next, and hence for all [Bostock]
Complete induction assumes for all numbers less than n, then also for n, and hence for all numbers [Bostock]
The logic of arithmetic must quantify over properties of numbers to handle induction [Smith,P]
If a set is defined by induction, then proof by induction can be applied to it [Zalabardo]
Inductive proof depends on the choice of the ordering [Walicki]
Transfinite induction moves from all cases, up to the limit ordinal [Colyvan]