Logic is traditionally defined as the study of the laws of thought or correct reasoning, and is usually understood in terms of inferences or arguments. Reasoning is the activity of drawing inferences. Arguments are the outward expression of inferences. An argument is a set of premises together with a conclusion.

No, Logic has not been knighted by the Queen. The prefix was actually given by his mother when he was born.

FUNDAMENTAL PRINCIPLE OF LOGIC If an argument is valid, then every argument with the same form is also valid. If an argument is invalid, then every argument with the same form is also invalid. There is one more principle that we need to add before describing the method of counterexamples.

Sir Robert Bryson Hall II (born January 22, 1990), known professionally as Logic, is an American rapper, singer, songwriter, and record producer from Gaithersburg, Maryland. He released his debut mixtape, Psychological: The Mixtape in December 2009 under the name Psychological, thereafter shortening his name to Logic.