Study two techniques for demonstrating that an argument in first-order predicate logic is invalid. But beyond these very practical benefits, informal logic—the kind we apply in daily life—is the gateway to an elegant and fascinating branch of philosophy known as formal logic, which is philosophy’s equivalent to calculus. Thank you Professor and The Great Courses for bringing back the magic of logic. Equivocation changes the meaning of terms in the middle of an argument. Looking for The Great Courses Plus subscription service? From the very first lesson he is able to capture attention and hold it through even the most complex of ideas. See what happens if we deny the central claim of classical logic, that a proposition is either true or false. Ideal for students with no background in logic or philosophy, Simple Formal Logic provides a full system of logic adequate to handle everyday and philosophical reasoning. In logic we always use \or" in the inclusive sense. Please enter a password that is between 5 and 20 characters long. It's simple: Once you have paid for your order, your friend or loved one will receive an email letting them know that they have a gift waiting for them at Course was well presented and I will need to go back and do several lectures given the depth of the subject matter. Q: How will I know they have received my eGift? We now offer our courses through our subscription service The Great Courses Plus via our apps and website which gives you access to over 300 hundred courses. Follow the work of Hilbert, Cantor, Frege, Russell, and Godel to prove that the logical consistency of mathematics can be reduced to basic arithmetic. The recipient can exchange the gift for another course of equal or lesser value, or pay the difference on a more expensive item. Formal logic is a breathtakingly versatile tool. Q: Why do I need to specify the email of the recipient? Logic says that you should take this course. It not only explains the ideas simply, but also extremely well for beginners. Q: When purchasing a gift for someone, why do I have to create an account? Using truth tables, test the validity of famous forms of argument called modus ponens and its fallacious twin, affirming the consequent. Wind up the course by considering where you've been and what logic is ultimately about. Truth tables are not consistently user-friendly, and some arguments defy their analytical power. From advertisers trying to separate you from your money, to politicians trying to sway your vote, to friends who want you to agree with them, your belief structure is constantly under attack. Then survey what you will learn in the course. Comments. To ensure that the pricing on the website is the same as what is in your catalog or advertisement, please enter the priority code provided. But An Introduction to Formal Logic shows that the symbols convey simple ideas compactly and become second nature with use. It becomes just a bit redundant. However, the noun phrase “a dog” means two completely different things in these two cases. Then test yourself with a series of examples, and try to name that fallacy! You can access your courses and account information here using the same Email Address and Password that you have always used. Neither provides absolute proof in its field of analysis, but if faults such as those in Lecture 7 are avoided, the conclusions can be impressively reliable. Delve deeper into the effort to prove that the logical consistency of mathematics can be reduced to basic arithmetic. Unfortunately, audio is something the Great Courses no longer does. These contrasting ideas are symbolized like so: You will discover that many consequential arguments in daily life hinge on a similar ambiguity, which dissolves away when translated into the clear language of logic. Ad hominem attacks try to undermine the arguer instead of the argument. The method of expansion has no such requirement. You can try The Great Courses Plus for FREE by subscribing through one of the apps below. All rights reserved. We will send you an email so you can reset your password. With these additions, you are now fully equipped to evaluate the validity of arguments from everyday life. Influential philosophers throughout history have argued that humans are purely rational beings. Q: I don't want to send downloads. And red herrings introduce an irrelevant subject. Q: Can I select a date in the future to send my eGift? Continue with neglect of a common cause, causal oversimplification, confusion between necessary and sufficient conditions, and the slippery slope fallacy. I find the fact that the Professor goes back to summarize what he has talked about several times in each lecture to be a bit trying. Learn how Kurt Gödel’s incompleteness theorems sounded the death knell for this ambitious project. But Gödel didn’t need a lab to make his discovery—only logic. From these and other cases of cognitive bias where our instincts work against sound reasoning, you begin to see how logic is a marvelous corrective that protects us from ourselves. Learn about truth-functional logic, pioneered in the late 19th and early 20th centuries by the German philosopher Gottlob Frege. You must have JavaScript enabled in your browser to utilize the functionality of this website. This made it hard to go over those proofs in a careful step by step manner. If it is not found, please email customer service at ( or call 0800 298 9796 for assistance. His dry humor is especially hilarious to me and I look forward to my daily lessons. The emphasis will be on propositional (or sentential) logic and first-order predicate logic.” You can stream all the lectures above, or find them all on this YouTube playlist. Just as then, I could actually feel my imagination swirling to the suggestion of heights that I'm still amazed that I would possibly achieve and share with others twenty years later. Who knew logic could be so entertaining, as well as useful?!?! Q: What if the email associated with eGift is not for my regular Great Course account?

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