We picture facts to ourselves.
A picture presents a situation in logical space, the existence and non-existence of states of affairs.
A picture is a model of reality.
In a picture objects have the elements of the picture corresponding to them.
In a picture the elements of the picture are the representatives of objects.
What constitutes a picture is that its elements are related to one another in a determinate way.
A picture is a fact.
The fact that the elements of the picture are related to one another in a determinate way represents that things are related to one another in the same way. Let us call this connexion of its elements the structure of the picture, and let us call the possibility of this structure the pictorial form of the picture.
Pictorial form is the possibility that things are related to one another on the same way as the elements of the picture.
That is how a picture is attached to reality; it reaches right out to it.
It is laid against reality like a measure.
Only the end-points of the graduating lines actually touch the object that is to be measured.
So a picture, conceived in this way, also includes the pictorial relationship, which makes it into a picture.
The pictorial relationship consists of the correlations of the picture’s elements with things.
These correlations are, as it were, the feelers of the picture’s elements, with which the picture touches reality.
If a fact is to be a picture, it must have something in common with what it depicts.
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.
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.
A picture can depict any reality whose form it has. A spatial picture can depict anything spatial, a coloured one anything coloured, etc.
A picture cannot, however, depict its pictorial form: it displays it.
A picture represents its subject from a position outside it. (Its standpoint is its representational form.) That is why a picture represents its subject correctly or incorrectly.
A picture cannot, however, place itself outside its representational form.
What any picture, of whatever form, must have in common with reality, in order to be able to depict it - correctly or incorrectly - in any way at all, is logical form, i.e. the form of reality.
A picture whose pictorial form is logical form is called a logical picture.
Every picture is a the same time a logical one. (On the other hand, not every picture is, for example, a spatial one.)
Logical pictures can depict the world.