Logic - log·ic (lŏj′ĭk) n. 1. The study of the principles of reasoning, especially of the structure of propositions as distinguished from their content and of method and Welcome to LOGIC - Local Government Investment Cooperative. LOGIC is a AAA rated local government investment pool created by Texas local government officials who Sir Robert Bryson Hall II (born January 22, 1990), known by his stage name Logic, is an American rapper, singer, songwriter, and record producer. Logic Pro X brings Touch Bar support and other powerful new tools to the studio. In a more modern interface. Logic definition, the science that investigates the principles governing correct or reliable inference. See more. 79.1K tweets • 4,446 p.os/.s • 1.3M followers. Check out the latest Tweets from Bobby Tarantino (@Logic301) logic, the systematic study of valid inference. A distinction is drawn between logical validity and truth. Validity merely refers to formal properties of the process Logic, from Cl.ical Greek λόγος (logos), originally meaning the word, but also referring to. Define logic: a proper or reasonable way of thinking about or understanding something — logic in a sentence logic: the study of correct reasoning, especially as it involves the drawing of inferences. Logic.