************ REVIEW/REMINDERS ************ * an ARGUMENT (in the world of critical thinking) is a GROUP OF STATEMENTS that INCLUDE the following: * one or more of this group of statements are intended as SUPPORT for that argument. These SUPPORTING statements are called PREMISES * one statement is what the argument is intended to CONVINCE or PERSUADE. This statement is called the CONCLUSION. * SO, within the set of statements making up an argument: * the premise statement(s) and the conclusion statement should be RELATED or LINKED in some way. * the premise statement(s) should be presented with the INTENT of persuading one to support the conclusion statement * the conclusion statement should be something DERIVED from the premise statement(s), and not be a simple observation. * the conclusion statement should NEED (or at least USE) the premise statements in order to be argued effectively ************ * some examples of sets-of-statement(s) that are NOT ARGUMENTS: * reports - simply convey information, but do not try to persuade * weather reports, news reports * The low temperature will be 11 degrees Celsius tomorrow, and the high temperature will be 18 degrees Celsius tomorrow. It will be partly cloudy and humid. * unsupported assertions - a statement without premises, statements that don't follow from or imply any other statements * It's going to rain today. I like chocolate. * [yes, this is from the silly extreme -- BUT neither follows from nor implies the other, and there is no attempt to persuade...] * conditional statements - an "if-then" statement with antecedents (the "if" part) and consequents (the "then"), but make no claim to persuasion. * [CAN be hard to determine whether there is an IMPLIED argument inside...!] * If it is sunny, then we will picnic in the park. * antecedent: if it is sunny * consequent: then we will picnic in the park * If money_left > 0, then buy next list item. * antecedent: if money_left > 0 * consequent: then buy next list item * illustrations - providing an example or two of how a statement may be true does not necessarily make an argument. * [CAN be hard to determine whether the arguer intends to make an argument with the examples or not] * (from the text) "Many wildflowers are edible. For example, daisies and day lilies are delicious in salads." * in an illustration, the purpose is not to provide CONVINCING evidence for a conclusion, but a few notable or representation examples of a claim. * explanations - explaining why a statement may be true does not necessarily try to prove or persuade that it is true. * (from the course text) "The Titanic sank because it hit an iceberg." CAN rephrase: "Because it hit an iceberg, the Titanic sank." * this is not trying to persuade you that the Titanic sank, (that is rather common knowledge), it is just explaining about its sinking * a few BASIC TESTS to HELP in determining if a set-o-statements is an argument: * the common knowledge test * is the statement that would be considered the conclusion instead simply a matter of common knowledge * the past event test * is the statement that's meant to be the conclusion a matter of easily confirmable past history? * the author's intent test * is the statement that's meant to be the conclusion a matter of how the particular fact came to be? * principle of charity test * is the so-called argument so vaguely or poorly supported that it would be kinder to say it is not an argument (rather than, it is a baaad argument) * next: we will start discussing the course text's Chapter 3 - Basic Logical Concepts