A Summary of the "Tractatus Logico-Philosophicus" Post 8
I will continue with a few more remarks. All of this is still under the second main proposition of the Tractatus.
“What is the case—a fact—is the existence of states of affairs (T. 2).”
What’s obvious is that states of affairs are real. For example, “The Earth has one moon,” Is a state of affairs. The proposition represents a picture of a fact. A fact is something real, not imagined. The two parts of complex facts are atomic facts and the objects that make up atomic facts. These things (things in the normal sense) are real for Wittgenstein. “Objects make up the substance of world [reality] (T. 2.021),” so substance and therefore objects are real.
Philosophers going back to Augustine have believed that names, in the normal use of the word, refer to objects (objects in this sense are things like chairs, pencils, cars, etc.). Wittgenstein develops this idea into his theory of names and objects. Of course, his idea of names and objects is much different from what philosophers traditionally meant, at least up to Frege, Russell, and maybe a few others.
“If the world had no substance, then whether a proposition had sense would depend on whether another proposition was true (T. 2.0111). In that case we could not sketch any picture of the world (true or false) (T. 2.0212).” Pictures, of course, are sketched by propositions, and names are the smallest component of propositions. The names within a proposition refer to objects in the world. All propositions for Wittgenstein are logical pictures. A picture presents a form, i.e., the arrangement of the elements of the picture, and the “…elements of the picture are the representatives of objects (T. 2.131).”
So, the form of a proposition, which is the arrangement of the elements of a picture (made up of names), must match the form of a fact, which is made up of the arrangement of the objects. “There must be something identical in a picture and what it depicts, to enable the one to be a picture of the other at all (T. 2.161). What a picture must have in common with reality, in order to be able to depict it—correctly or incorrectly—in the way it does, is its pictorial form (T. 2.17). A picture can depict any reality whose form it has. A spatial picture can depict anything spatial, a coloured one anything coloured, etc (T. 2.171).”
All propositions have a sense, and that sense is represented by its pictorial form. Whether that sense is representative of reality depends on whether its logical form matches the logical form of reality. The sense of a proposition is independent of whether it matches the form of reality. This must be for us to understand the sense of false propositions or pictures that do not match reality.
“A picture represents its subject [the subject being the possibility of the existence of a fact] from a position outside it (Its standpoint is its representational form.) That is why a picture represents its subject correctly or incorrectly (T. 2.173). A picture cannot, however, place itself outside its representational form [a picture presents or shows its form] (T. 2.174).”