Since you had a good time, you must have gone skiing. Since all German Shepherds are animals, therefore all German Shepherds are dogs because all dogs are animals. A moose is a large animal with horns 19. Efficient means the condition of not being inefficient. Architecture means frozen music.
Wine is an alcoholic beverage made from red grapes.
Strike means a pitch at which a batter swings and misses. Theism means belief in that great Santa Claus in the sky. An argument from authority is an example of a deductive argument. Arguments based on mathematics are deductive arguments. It is impossible to have an invalid argument with true premises and a true conclusion.