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Tractatus Logico-Philosophicus · Chapter
5.122 explained
Wittgenstein states that if a proposition p follows from q, then the sense of p is already contained within the sense of q.
What happens
Wittgenstein states that if a proposition p follows from q, then the sense of p is already contained within the sense of q.
Themes in this chapter
Logical Atomism
The containment of sense in logical consequence reflects the atomistic structure of propositions.
Characters to notice
- Mr. Wittgenstein
Author of the proposition.
Key passages
“If p follows from q , the sense of “ p ” is contained in that of “ q ”.”
When one proposition logically implies another, the meaning of the implied proposition is already part of the meaning of the implying proposition.
This illustrates the internal relation between propositions in logical inference.