Tractatus Logico-Philosophicus · Chapter
4.0641 explained
This proposition explores the nature of denial in logic, arguing that a denial is inherently related to the logical place of the proposition it denies.
What happens
This proposition explores the nature of denial in logic, arguing that a denial is inherently related to the logical place of the proposition it denies. The denying proposition defines a different logical place by indicating it lies outside the place of the denied proposition. The fact that a denied proposition can itself be denied demonstrates that the denied entity is already a full proposition, not merely a preliminary to one.
Themes in this chapter
Logical Atomism
The discussion of logical places and the structure of propositions reflects the atomistic view that propositions are composed of elementary units with determinate logical relations.
Nonsense and Meaning
The analysis of denial presupposes that the denied proposition is meaningful, as it must be a full proposition to be denied, touching on the boundary between sense and nonsense.
Characters to notice
- Mr. Wittgenstein
Author of the proposition, presenting a logical analysis of denial.
Key passages
“One could say, the denial is already related to the logical place determined by the proposition that is denied.”
Denial inherently refers to the logical position established by the proposition it negates.
Clarifies that negation is not independent but depends on the original proposition's logical location.
“The denying proposition determines a logical place, with the help of the logical place of the proposition denied, by saying that it lies outside the latter place.”
The negating proposition defines its own logical position by using the position of the negated proposition and stating that it is external to that position.
Explains how negation operates by exclusion relative to the original proposition's logical space.
“That one can deny again the denied proposition, shows that what is denied is already a proposition and not merely the preliminary to a proposition.”
The possibility of denying a denial indicates that the original denied statement is a complete proposition, not just a precursor to one.
Emphasizes that the object of denial must be a fully formed proposition with determinate sense.