Weegy: There are thousands upon thousands of possible examples depending on how general or specific you want to be. In the case of basic logic used in both math/science and philosophy, you have the argument form called the syllogism.
e.g. [ All men are mortal. Socrates is a man. Therefore, Socrates is mortal.
] User: What is an example of an ancient Greek philosophy that was formed using deductive reasoning? Weegy: A subdivision of ... (More)