What is logic definition?

Logic can be defined as the systematic study of reasoning and argumentation. It involves deducing conclusions from given premises using valid principles of inference. In other words, logic is concerned with determining whether an argument is valid or invalid based on its structure, rather than the truth or falsity of the premises or conclusion. It includes a set of rules and principles that help to ensure that arguments are sound and reasonable, and it is used in a variety of disciplines, including philosophy, mathematics, computer science, and linguistics. Some of the key concepts in logic include deduction, induction, validity, soundness, and the use of symbols and formal languages to represent and evaluate arguments.