 Philosophers and logicians teaching general courses on argument have often managed the issues that this raises by mixing formal and informal methods of analysis. Though the artificial examples of argument that characterize early editions of Copi (and some other texts that emphasize formal logic) have been roundly criticized (see Johnson 1996 and Blair 2015), other authors more successfully meld classical formal logic and examples of real argument. Harrison 1969 is an example. So are the texts of Pospesel, which contain many examples of real life reasoning which illustrate the patterns of inference associated with propositional and syllogistic logic (Pospesel and Marans 1978, Rodes and Pospesel 1991, and Pospesel 2002). Little 1980 develops an approach to critical thinking and decision making that integrates propositional and syllogistic reasoning. 