It is elementary, my dear Watson. A segment in a playlist on geometry introduces the idea of deductive reasoning. The video goes over three rules that apply to deductive reasoning and conditional statements.

This lesson introduces deductive reasoning and the laws of logic. It is 1 of 7 in the series titled "Deductive Reasoning and the Laws of Logic."

This lesson introduces deductive reasoning and the laws of logic. It is 3 of 7 in the series titled "Deductive Reasoning and the Laws of Logic."