Polish Logic refers to a branch of mathematical logic that originated in Poland during the early 20th century. It is closely associated with the work of prominent logicians such as Jan Łukasiewicz and Alfred Tarski. This field is known for its development of non-classical logics, including many-valued logic and modal logic, which expand traditional binary true/false evaluations. One of the key contributions of Polish Logic is the introduction of prefix notation, also known as Polish notation, which simplifies the representation of mathematical expressions. This notation eliminates the need for parentheses by placing operators before their operands, making it easier to parse complex logical statements.