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Tractatus Logico-Philosophicus · Chapter

5.5541 explained

Wittgenstein questions whether it is possible to determine a priori if one might ever need to use a sign for a 27-termed relation, highlighting the limits of logical syntax and the contingency of symbolic needs.

What happens

Wittgenstein questions whether it is possible to determine a priori if one might ever need to use a sign for a 27-termed relation, highlighting the limits of logical syntax and the contingency of symbolic needs.

Themes in this chapter

  • Limits of Language and Thought

    The question challenges whether logical form can be fully determined in advance, pointing to boundaries of what can be said a priori.

Characters to notice

  • Mr. Wittgenstein

    Poses a rhetorical question about the a priori necessity of complex relational signs.

Key passages

  • How could we decide a priori whether, for example, I can get into a situation in which I need to symbolize with a sign of a 27-termed relation?

    How could we know in advance, without experience, that we might ever need a symbol for a relation involving 27 terms?

    Wittgenstein questions the possibility of a priori knowledge about the complexity of logical notation.