Tractatus Logico-Philosophicus · Chapter
6.231 explained
Wittgenstein discusses the formal properties of logical operations, noting that affirmation can be understood as double denial, and that numerical expressions like '1+1+1+1' can be regrouped as '(1+1)+(1+1)', illustrating the internal struc
What happens
Wittgenstein discusses the formal properties of logical operations, noting that affirmation can be understood as double denial, and that numerical expressions like '1+1+1+1' can be regrouped as '(1+1)+(1+1)', illustrating the internal structural properties of propositions.
Themes in this chapter
Logic and Tautology
The discussion of affirmation as double denial and the regrouping of numbers illustrates the tautological nature of logical and mathematical transformations.
Characters to notice
- Mr. Wittgenstein
Author of the Tractatus; presents the formal properties of affirmation and numerical grouping.
Key passages
“It is a property of affirmation that it can be conceived as double denial.”
Affirmation has the formal property of being equivalent to two negations.
Highlights the logical equivalence between affirmation and double negation.
“It is a property of “ 1 + 1 + 1 + 1 ” that it can be conceived as “ ( 1 + 1 ) + ( 1 + 1 ) ”.”
The sum 1+1+1+1 can be regrouped as (1+1)+(1+1) without changing its value.
Demonstrates the internal structural property of numerical expressions.