Skip to content
Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

proposition

The claim a sentence makes, apart from the words used to make it.

A proposition is what a statement says: the content that is true or false. Different sentences, even in different languages, can express the same proposition, and one ambiguous sentence can express two different propositions.

Examples

  • "It's raining" and "Rain is falling" express the same proposition.

  • "I saw her duck" can express two different propositions.

See also

statement truth value
Read the full section →