Information on the class -- grading, sections, homework; and an introduction to what logic is, and how we will be approaching it in this class.

Lecture 01: Audio

Here we begin describing the formal structures underlying reasoning - arguments, statements, and the recursive nature of statement operators.

Lecture 02: Audio

Translating natural language into the formal notation of sentential logic, including necessary &amp; sufficient conditions, and recursively structured compound statements.

Lecture 03: Audio

Discussion of functions, truth functions, the truth functions symbolized by statement operators, and the construction of truth tables to evaluate compound expressions.

Lecture 04: Audio

Using truth tables to assess relations of equivalence, consistency and implication among sets of statements; and assessing argument validity.

Lecture 05: Audio

An introduction to the proof method in sentential logic, with examples using five inference rules (MP, MT, DS, HS, simp).

Lecture 06: Audio

Additional inference rules (dil, DI, conj), and three replacement rules (CE, DN, comm). Examples of more complicated proofs.

Lecture 07: Audio

Introduction of final seven replacement rules (DeM, BE, contra, dist, exp, assoc, dup); and introduction to the method of indirect proof.

Lecture 08: Audio

Introduction to conditional proof; multiple and nested subproofs; using the proof method to verify that a statement is a tautology.

Lecture 09: Audio

Clarification of issues that often cause problems, including: negation, the interpretation of statement variables and operator specificity in rule schematics, and requirements on subproofs.

Lecture 10: Audio

Audio of lectures, and .pdfs of powerpoint slides, for Philosophy 10, Introduciton to Logic, UC San Diego.

Discussion of the following informal fallacies: Genetic fallacy, ad hominem (including several subtypes), and ad populam (including subtypes)

Lecture 11: Audio

Discussion of the following informal fallacies: appeal to pity, straw man, appeal to force, appeal to authority.

Lecture 12: Audio

Discussion of the following informal fallacies: appeal to ignorance, slippery slope, alternate description, composition/division.

Lecture 13: Audio

Discussion of the following informal fallacies: false cause, hasty generalization, weak analogy, begging the question; and formal fallacies of affirming the consequent &amp; denying the antecedent.

Lecture 14: Audio

No new informal fallacies are introduced, rather this is a discussion of additional examples of the fallacies introduced in previous lectures.

Lecture 15: Audio

Logic (Audio w/ .pdfs)

The best podcast episodes on physical health. Episodes talk about your diet, sleep, exercise and all the things that people do to improve their physical health and live a healthier life. This topic is for everyone, with applications in all of our everyday lives. Add episodes you're interested into your queue below!

Best Episodes on Physical Health & Your Body

The best philosophy podcast episodes. Asking questions about how to live a better life, what it means to be and do good, to the idea of God. This topic includes episodes that bring about important questions that everyone should be asking themselves. Add episodes you're interested into your queue below!