Introduction to Philosophy and the Mechanics of Argumentation

Foundational Goals: The lecture aims to explore two primary questions that serve as the foundation for the entire course: * What is philosophy? * What constitutes a good argument in philosophy?
Pedagogical Context: These concepts are essential because students will encounter numerous arguments made by philosophers throughout the coming weeks of the course.

Etymological Definition: Literally, the word "philosophy" is derived from the Greek language, meaning a "love of wisdom."
Illuminating Definitions: * The Pursuit of Flourishing: One definition provided is that philosophy is "the pursuit of knowledge and wisdom for the sake of flourishing." * Clarification of Academic Philosophy: Within a university context, philosophy does not merely refer to a personal "way of life" or a subjective "angle" on the world. Instead, academic philosophy is a rigorous attempt to settle particular questions through the pursuit of knowledge. * The Concept of Wisdom: We engage in this pursuit because it helps us to live well, which is the essence of wisdom. Philosophy asks genuine questions that may have answers, even if certainty remains elusive.

Comparison with Engineering and Medicine: While disciplines like engineering (studying infrastructure to lead good lives) and medicine (fighting disease to aid human flourishing) also seek knowledge for the purpose of living well, philosophy is distinct in its fundamental concerns.
Primary Concerns of Philosophy: 1. Fundamental Existence: What really exists at a fundamental level? * Examples of Ontological Questions: What are humans? Do we possess an immaterial mind or a soul? Is there a being more fundamental than humans, such as a God? * The Nature of Objects: When we see a table or chairs, do they "really" exist as such, or are they simply collections of atoms arranged in a particular way? 2. Epistemology: How do we know what there is in the world? How can we know anything at all?

Weeks 1–2: Epistemology: This period focuses on the philosophy of knowledge, questioning how and if we can know anything.
Weeks 3–4: Metaphysics: This period examines the philosophy of fundamental reality. * Topics include the nature of the human person (physical bodies versus immaterial parts) and human freedom (whether we are free or constrained by our bodies and the history of the universe).
Weeks 5–7: Philosophy of Religion: This segment applies epistemological and metaphysical principles to the question of the existence of God and whether belief in God is reasonable.

Methodology: Philosophy is not merely the laying out of personal views; it involves the construction of arguments to convince others that a particular answer is correct.
Reasons for Using Arguments: 1. Testing Ideas: Philosophers use arguments to display, test out, and think through the implications of their views. 2. Persuasion: To convince other philosophers or students to embrace their beliefs (e.g., arguing why one should agree that there is a God). 3. Intellectual Satisfaction: While some may argue for the sake of it, the lecture suggests this is less exciting for young people than other forms of fun. 4. Communal Project: Philosophy is a communal project of seeking truth and wisdom together through debate and dialogue.

Definition of Deductive Arguments: Arguments which aim to show that, given certain starting points/assumptions known as premises, the conclusion must follow by logical necessity.
The Goal of Logic: To show that if the premises are true, the conclusion must be true on pain of breaking the laws of logic.
The Concept of Validity: * An argument is valid if the conclusion follows logically and necessarily from the premises. * Example of a Valid Argument: * $P_1$ : All groundhogs are formidable. * $P_2$ : Gary is a groundhog. * $C_3$ : Gary is formidable.
Inductive Arguments: Though not the focus of the lecture, inductive arguments aim to show a conclusion is "plausibly true" or likely, rather than logically necessary.

Logical Mistakes: Not all arguments that try to be deductive are valid.
Example of an Invalid Argument: * $P_1$ : All groundhogs are formidable. * $P_2$ : Penelope isn't a groundhog. * $C$ : Penelope isn't formidable. * Explanation of the Fallacy: This is a logical mistake because just because all groundhogs are formidable, it does not mean only groundhogs are formidable. Penelope might be a lioness, which is also a formidable creature.
Equivocation: A common way arguments fail is by using the same term at different points with different meanings.

Validity vs. Soundness: An argument can be valid even if its premises are false. However, a valid argument with false premises usually leads to a false conclusion (though it occasionally results in a true conclusion by accident).
Example of a Valid but Unsound Argument: * $P_1$ : If Cedric is a groundhog, the lions will win the Super Bowl. * $P_2$ : Cedric's a groundhog. * $C$ : The lions will win the Super Bowl. * Analysis: This argument is valid ( $P \rightarrow Q$ ; $P$ ; therefore $Q$ ), but since $P_1$ is false, the argument is not useful.
Definition of Soundness: An argument is sound if and only if it is valid AND all of its premises are actually true.

The Limit of Soundness: Even a sound argument may fail to be persuasive if the audience doubts the premises.
Example of an Unpersuasive Argument: * $P_1$ : Doctor Stacy once walked up the Acropolis at noon. * $P_2$ : Only mad dogs and Englishmen go out in the noonday sun. * $C$ : Doctor Stacy is an Englishman or else a mad dog. * Analysis: This is valid and (reportedly) sound, but because an audience might doubt the premises, it lacks persuasive force.
Begging the Question: An argument "begs the question" if nobody who doubts its conclusion would accept its premises. It starts with premises that essentially assume the conclusion.
Example of Begging the Question: * $P_1$ : Everything which the Quran teaches is true. * $P_2$ : The Quran teaches that God reveals himself to Muhammad. * $C$ : God reveals himself to Muhammad. * Analysis: This is logically valid, but it will not persuade a non-Muslim because they would not accept $P_1$ unless they already believed the conclusion ( $C$ ).

To be useful in the "communal project" of seeking truth, arguments should meet three standards: 1. Acceptable Premises: Start with premises that are acceptable to people who might currently doubt the conclusion. 2. Logical Reasoning: Reason logically from those premises to the conclusion (Deductive Validity). 3. Initial Plausibility: Argue for conclusions that possess some initial degree of plausibility; there is no utility in arguing for "crazy" propositions that no one takes seriously.
Additionally, students should strive for arguments that are valid, plausibly sound, and avoid begging the question for skeptics.