In this lesson our instructor talks about deductive reasoning. She talks about the difference between inductive and deductive reasoning. She discusses the law of detachment and the law of syllogism. She talks about using laws of logic. Four complete extra example videos round up this lesson.
Deductive reasoning: The process of reasoning logically from given statements to a conclusion. If given statements are true, then deductive reasoning produces a true conclusion.
Inductive reasoning uses examples and patterns to make conjectures
Deductive reasoning uses logic and rules to make a conclusion
Law of Detachment: If a conditional is true and its hypothesis is true, then the conclusion is true. If p→q, is true and p is true, then q is true.
Law of Syllogism: If p→q and q→r are true conditionals, then p→r is also true. This is similar to the Transitive Property of Equality.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.