 The theoretical background that characterizes systems of informal logic can be used to identify, not only specific systems, but also families of systems which share key theoretical elements. Many informal logicians have, to take one example, turned to fallacy theory in their attempt to find a logic that can account for real life arguing. In some cases, the result has been fallacy oriented textbooks which introduce tens or hundreds of fallacies used to dismiss straw man reasoning, hasty generalizations, slippery slope reasoning, and so on (see, e.g., Bennett 2018). 