All chapters

Tractatus Logico-Philosophicus · Chapter

6.21 explained

Wittgenstein asserts that mathematical propositions do not express thoughts, distinguishing them from genuine propositions that picture facts.

What happens

Wittgenstein asserts that mathematical propositions do not express thoughts, distinguishing them from genuine propositions that picture facts.

Themes in this chapter

  • Nonsense and Meaning

    Mathematical propositions are shown to lack the sense of genuine propositions, as they do not picture states of affairs.

  • Logic and Tautology

    Mathematical propositions are akin to tautologies, expressing no factual content or thought.

Characters to notice

  • Mr. Wittgenstein

    Author of the proposition that mathematical propositions express no thoughts.

Key passages

  • Mathematical propositions express no thoughts.

    Mathematical statements do not convey any factual content or represent possible states of affairs.

    Wittgenstein distinguishes mathematical propositions from empirical ones, aligning them with logical tautologies.