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In Wittgenstein's Tractatus, language is

    { 1 } - composed primarily of sounds, secondarily of written inscriptions.
    { 2 } - a social phenomenon -- like a game.
    { 3 } - meaningless unless it's empirically testable or analytic.
    { 4 } - the totality of propositions.

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1 is wrong. Please try again.

In Wittgenstein's Tractatus, language is

He doesn't mention such things.

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2 is wrong. Please try again.

In Wittgenstein's Tractatus, language is

    { 1 } - composed primarily of sounds, secondarily of written inscriptions.
    { 2 } - a social phenomenon -- like a game.
    { 3 } - meaningless unless it's empirically testable or analytic.
    { 4 } - the totality of propositions.

This is what he said later, in the Philosophical Investigations.

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3 is wrong. Please try again.

In Wittgenstein's Tractatus, language is

    { 1 } - composed primarily of sounds, secondarily of written inscriptions.
    { 2 } - a social phenomenon -- like a game.
    { 3 } - meaningless unless it's empirically testable or analytic.
    { 4 } - the totality of propositions.

This is logical positivism.

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4 is correct!

In Wittgenstein's Tractatus, language is

    { 1 } - composed primarily of sounds, secondarily of written inscriptions.
    { 2 } - a social phenomenon -- like a game.
    { 3 } - meaningless unless it's empirically testable or analytic.
    { 4 } - the totality of propositions.

These propositions picture (or model) reality. Propositions are true if they correspond to reality, and false if they do not.

Wittgenstein adds that natural science is the totality of true propositions.

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