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Single Idea 17754

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

Full Idea

Inductive proof is not guaranteed to work in all cases and, particularly, it depends heavily on the choice of the ordering.

Gist of Idea

Inductive proof depends on the choice of the ordering

Source

Michal Walicki (Introduction to Mathematical Logic [2012], 2.1.1)

Book Ref

Walicki,Michal: 'Introduction to Mathematical Logic' [World Scientific 2012], p.69


A Reaction

There has to be an well-founded ordering for inductive proofs to be possible.


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]