Attacking Faulty Reasoning the five criteria of a good argument: Each fallacy falls into at least one of Damer's five fallacy categories, which derive from the above criteria. The text also sets forth 12 principles that constitute a "Code of Conduct for Effective Discussion." This code incorporates Damer’s fallacy theory and provides a procedural and ethical standard for the development of an effective intellectual style to be used when engaging in a rational discussion of important issues. Attacking Faulty Reasoning Attacking Faulty Reasoning is a textbook on logical fallacies by T. Edward Damer that has been used for many years in a number
How many angels can dance on the head of a pin? about how many could perch at the same time on the head of a pin"". Dorothy L. Sayers argued that the question was "simply a debating exercise" and that the answer "usually adjudged correct" was stated as, "Angels are pure intelligences, not material, but limited, so that they have location in space, but not extension." Sayers compares the question to that of how many people's thoughts can be concentrated upon a particular pin at the same time. She concludes that infinitely many angels can be located on the head of a pin, since they do not occupy any space there: