What Is a Valid Argument?
Critical Thinking basics
In a valid argument, it is not possible that the conclusion is false when the premises are true. Or, in other words: In a valid argument, whenever the premises are true, the conclusion also has to be true. (more...)
What Is a Fallacy?
Critical thinking basics
A fallacy in Critical Thinking is an error in argumentation that makes an argument invalid. (more...)
If only I hadn’t done that...
Why counterfactuals are misleading
What if the Second World War had turned out differnetly? This article explains why counterfactuals and alternative histories can be misleading. (more...)