logiki

Logiki, written in Greek as λογική and transliterated logiki, is the term used for logic—the systematic study of correct reasoning, argument structure, and the principles that govern inference and justification. As a field, logiki seeks to distinguish valid forms of reasoning from fallacious ones and to analyze the methods by which evidence supports conclusions.

Historically, logiki traces to ancient Greek philosophy. Aristotle's Organon introduced basic forms of deductive reasoning and syllogistic theory, which framed early logic for centuries. In the modern era, logic expanded into formal and mathematical disciplines with contributions from Kant, Frege, Russell, Hilbert, and Tarski, among others. The Greek term continues to be used in Greek-language discourse for both everyday reasoning and academic study.

Today, logiki encompasses multiple subfields, including formal logic (propositional and predicate logic), mathematical logic, model theory, proof theory, set theory, and computational logic. In philosophy, it addresses questions of validity, soundness, and the nature of inference; in computer science, it underpins programming language design, verification, and automated reasoning. Cross-disciplinary usage appears in linguistics, cognitive science, and ethics when analyzing arguments and reasoning processes.

Educationally, logiki is taught as part of philosophy, mathematics, and computer science curricula in Greek-speaking regions, and the term appears in courses and literature that discuss logic in a Greek context. See also: philosophy of logic, mathematical logic.