It is important for everyone to be able to think clearly. It is especially true for programmers, detectives and lawyers. You need to be able to work things out from the facts you know. The Ancient Greeks were very good at logic. They invented the idea of a ‘syllogism’. These are common patterns that combine facts where you figure out a conclusion only using the facts.
To see the different ways you can combine facts to figure out different conclusions follow the links below.