Logic

Logic is a formal method of argument. Logical arguments generally take the form of "A therefore B" or "if A then B". The A part of the argument is called the premise, and the B part is called the conclusion. An extended argument may use conclusions from previous statements as premises in subsequent statements: A therefore B, B therefore C, C therefore D, etc.

Logic is the preferred method of debating, but some debaters prefer to use fallacious logic, relying on false premises to reach their preferred conclusions.