The IEP says fallacies can be classified in numerous ways including as formal or informal ... of them in depth over the years, along with examples of how they can be used (see each link to ...

A formal fallacy is an invalid type of argument. It is a deductive argument with an invalid form; for example: Some A are B. Some B are C. Therefore, some A are C. If you cannot see that this ...

Some are errors of logic (known as "formal" fallacies), while others are about ... run the world about the evidence for their claim, for example, and they might counter, "Well, these lizards ...