Tractatus Logico-Philosophicus · Chapter
2.02331 explained
This proposition explores the conditions under which a thing can be uniquely identified.
What happens
This proposition explores the conditions under which a thing can be uniquely identified. If a thing possesses properties that no other thing has, it can be distinguished and referred to by description. If multiple things share all properties, it is impossible to point to any one of them, as there is nothing to differentiate them.
Free preview opens on this chapter — companions, themes, and character notes appear beside the text.
Narrative arc
Story tension across the book — this chapter sits in Exposition.
- Setup
- Escalation
- Breaking point
- Aftermath
- Closing
This passage marks the story’s dramatic climax because it presents the moment when the protagonist’s obsessive…
Full beat labels and climax notes unlock in the reader.
Follow the arc while readingThemes in this chapter
- Logical Atomism
The proposition deals with the logical structure of objects and properties, central to logical atomism.
- Limits of Language and Thought
Discusses the limits of reference and description when objects are indistinguishable.
Characters to notice
- Mr. Wittgenstein
Author of the proposition, presenting a logical argument about individuation and description.
Key passages
“Either a thing has properties which no other has, and then one can distinguish it straight away from the others by a description and refer to it; or, on the other hand, there are several things which have the totality of their properties in common, and then it is quite impossible to point to any one of them.”
If an object has unique properties, it can be identified and named through description. If multiple objects share all properties, none can be singled out.
Clarifies the logical conditions for reference and individuation.
