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Single Idea 9915

[filed under theme 4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / o. Axiom of Constructibility V = L ]

Full Idea

V = L just says all sets are constructible. L is the class of all constructible sets, and V is the universe of all sets.

Gist of Idea

V = L just says all sets are constructible

Source

Hilary Putnam (Models and Reality [1977], p.425)

Book Ref

'Philosophy of Mathematics: readings (2nd)', ed/tr. Benacerraf/Putnam [CUP 1983], p.425


The 4 ideas from 'Models and Reality'

The Löwenheim-Skolem theorems show that whether all sets are constructible is indeterminate [Putnam, by Shapiro]
The Löwenheim-Skolem Theorem is close to an antinomy in philosophy of language [Putnam]
It is unfashionable, but most mathematical intuitions come from nature [Putnam]
V = L just says all sets are constructible [Putnam]