Tractatus Logico-Philosophicus · Chapter
6.12 explained
Wittgenstein explains that tautologies in logic reveal the formal, logical properties of language and the world.
What happens
Wittgenstein explains that tautologies in logic reveal the formal, logical properties of language and the world. The fact that certain combinations of propositions yield a tautology indicates that the constituent parts have specific structural properties, and this connection characterizes the logic of those parts.
Themes in this chapter
Logic and Tautology
This section directly discusses how tautologies reveal the formal properties of language and the world.
Characters to notice
- Mr. Wittgenstein
Author of the Tractatus, presenting the nature of logical tautologies.
Key passages
“The fact that the propositions of logic are tautologies shows the formal—logical—properties of language, of the world.”
That logical propositions are tautologies demonstrates the formal, logical structure inherent in both language and reality.
Wittgenstein asserts that tautologies are not about content but about the underlying logical form.
“That its constituent parts connected together in this way give a tautology characterizes the logic of its constituent parts.”
When the parts of a proposition are combined to form a tautology, this reveals the logical nature of those parts.
The structure of the components determines whether a tautology arises, reflecting their logical properties.