Philosophical #Diagrams No. 1 Show more
The diagram in my profile picture (and with better contrast below) can be found in Ludwig #Wittgenstein's (in)famous "Tractatus Logico-Philosophicus" in paragraph 6.1203. It shows the "Principle of Contradiction": Two contradictory statements (q and p in the diagram) cannot be true at the same time. The brackets mean something like: if this and this is the case, then ...
I really love this picture for what it looks like.
My views of the Tractatus are another story.