Logic – Part 6 – Tautologies Contradictions and Implications
Day 6 video for the Logic PREP course Summer 2013 In this video, we introduce tautology and contradictions, and how to prove an implication is valid.
Student pricing tip -
Any item including new computers - Gaming, School, Laptops, Desktops - when clicking on links - scroll page for lowest prices - look at all offers - More Buying Choices - used & new offers. Often the new offers are less than price shown. When you choose type of computer, if it only gives one listing, copy & paste computer name in search box, often you'll find other vendors listing same computer for less money