Recommended in Program(s): Challenge B Cycle(s): N/A Brian Kohl walks you through every lesson in his bestselling Intermediate Logic textbook: propositional logic, proofs, truth trees, digital logic, and so much more, not to mention practice tests and other helps for those learning at home. 4-DVD set Third edition, © 2 Classical Conversations resource: https://classicalconversationsbooks.com/products/bs047