Is There a Law of Non-Contradiction?

The armchair is just as much of a part of a world as everywhere else. There's no real value in this fantasizing that you don't actually believe in other people. The fact that we even speak to one another and understand one another is a reasonable thing that supports the fact that logic works. If you assume that the law of non-contradiction doesn't work, then nothing is meaningful. And you can't even communicate that.