All advertisements aim at persuasion. For example, imagine that Brand X cola claims to be the most refreshing drink. Simply stating this isn't very convincing, so a Brand X advertisement features a ...

We have seen that we can deduce new conditionals from old. But where do we get conditionals to start with? Fortunately, we can get conditionals from our three principles. Premise (5) in the LSAT ...

Formal logic helps us build and evaluate rational arguments, which helps us to test claims, explain our reasoning, and keep discussions clear. The first step in learning formal logic is learning about ...