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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 8 ideas with the same theme [logic is just a set of rules and concepts agreed by people]:

Each person is free to build their own logic, just by specifying a syntax [Carnap]
Laws of logic are like laws of chess - if you change them, it's just a different game [Wittgenstein]
If the result is bad, we change the rule; if we like the rule, we reject the result [Goodman]
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]
Maybe conventionalism applies to meaning, but not to the truth of propositions expressed [Hale]