Kiinteälogiikka

Kiinteälogiikka, known in English as fixed-logic or rigid logic, refers to a set of principles within certain theoretical frameworks, particularly in theoretical computer science and formal logic. It typically describes systems where the logical relationships and operations are predetermined and unchangeable. Unlike flexible or adaptable logic systems, in fixed-logic, the rules of inference and the meaning of logical connectives are constant and cannot be modified during the operation or execution of the system.

This concept is often contrasted with dynamic or context-dependent logical systems. In fixed-logic, a statement's truth value and its implications are solely determined by the established axioms and inference rules, regardless of external factors or the specific state of the system beyond the propositional content itself. This makes fixed-logic systems highly predictable and analyzable, which is advantageous for formal verification and theoretical proofs.

The term can appear in discussions of programming language semantics, database theory, and artificial intelligence, where different approaches to knowledge representation and reasoning are explored. While many practical systems might incorporate elements that appear fixed, the theoretical ideal of entirely fixed-logic is a foundational concept for understanding the boundaries and capabilities of formal reasoning. Its immutability is its defining characteristic, providing a stable ground for logical deduction.