Tractatus Logico-Philosophicus · Chapter
4.24 explained
Wittgenstein defines names as simple symbols, represented by single letters, and elementary propositions as functions of names, written in forms like 'fx' or 'φ(x,y)', or indicated by letters p, q, r.
What happens
Wittgenstein defines names as simple symbols, represented by single letters, and elementary propositions as functions of names, written in forms like 'fx' or 'φ(x,y)', or indicated by letters p, q, r.
Themes in this chapter
Logical Atomism
The chapter introduces names as simple symbols and elementary propositions as their functions, reflecting the logical atomist view that language decomposes into basic elements.
Characters to notice
- Mr. Wittgenstein
Author of the Tractatus, presenting his notation for names and elementary propositions.
Key passages
“The names are the simple symbols, I indicate them by single letters ( x , y , z ).”
Names are the simplest symbols, which I represent with single letters like x, y, z.
Wittgenstein clarifies his notation for names.
“The elementary proposition I write as function of the names, in the form “ f x ”, “ φ ( x , y ) ”, etc. Or I indicate it by the letters p , q , r .”
I write an elementary proposition as a function of names, for example 'fx' or 'φ(x,y)', or I use letters p, q, r to stand for them.
Wittgenstein describes how to express elementary propositions in his logical notation.