Tractatus Logico-Philosophicus · Chapter
5.142 explained
A tautology is a proposition that follows from all propositions and says nothing, emphasizing its vacuous nature.
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A tautology is a proposition that follows from all propositions and says nothing, emphasizing its vacuous nature.
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- Logic and Tautology
This proposition defines tautology as a logical consequence of all propositions that conveys no factual content.
Key passages
“A tautology follows from all propositions: it says nothing.”
A tautology is entailed by any proposition because it provides no information about the world.
Clarifies the nature of tautologies as empty yet logically valid statements.
