more on this theme     |     more from this thinker


Single Idea 9000

[filed under theme 5. Theory of Logic / C. Ontology of Logic / 4. Logic by Convention ]

Full Idea

When a convention is incapable of being communicated until after its adoption, its role is not clear.

Gist of Idea

If a convention cannot be communicated until after its adoption, what is its role?

Source

Willard Quine (Truth by Convention [1935], p.106)

Book Ref

Quine,Willard: 'Ways of Paradox and other essays' [Harvard 1976], p.106


A Reaction

Quine is discussing the basis of logic, but the point applies to morality - that if there is said to be a convention at work, the concepts of morality must already exist to get the conventional framework off the ground. What is it that comes first?


The 10 ideas from 'Truth by Convention'

Logic needs general conventions, but that needs logic to apply them to individual cases [Quine, by Rey]
Claims that logic and mathematics are conventional are either empty, uninteresting, or false [Quine]
Logic isn't conventional, because logic is needed to infer logic from conventions [Quine]
If a convention cannot be communicated until after its adoption, what is its role? [Quine]
Quine quickly dismisses If-thenism [Quine, by Musgrave]
If mathematics follows from definitions, then it is conventional, and part of logic [Quine]
If analytic geometry identifies figures with arithmetical relations, logicism can include geometry [Quine]
Definition by words is determinate but relative; fixing contexts could make it absolute [Quine]
If if time is money then if time is not money then time is money then if if if time is not money... [Quine]
There are four different possible conventional accounts of geometry [Quine]