In the agreement or disagreement of its sense with reality, its truth or falsity consists.
2.223
In order to discover whether the picture is true or false we must compare it with reality.
2.224
It cannot be discovered from the picture alone whether it is true or false.
2.225
There is no picture which is a priori true.
3
The logical picture of the facts is the thought.
3.001
“An atomic fact is thinkable”—means: we can imagine it.
3.01
The totality of true thoughts is a picture of the world.
3.02
The thought contains the possibility of the state of affairs which it thinks. What is thinkable is also possible.
3.03
We cannot think anything unlogical, for otherwise we should have to think unlogically.
3.031
It used to be said that God could create everything, except what was contrary to the laws of logic. The truth is, we could not say of an “unlogical” world how it would look.
3.032
To present in language anything which “contradicts logic” is as impossible as in geometry to present by its coordinates a figure which contradicts the laws of space; or to give the coordinates of a point which does not exist.
3.0321
We could present spatially an atomic fact which contradicted the laws of physics, but not one which contradicted the laws of geometry.
3.04
An a priori true thought would be one whose possibility guaranteed its truth.