sisäloogisuutta

Sisäloogisuutta refers to the concept of internal consistency. In various fields, particularly in logic, philosophy, and linguistics, it describes a state where a system, statement, or theory does not contain contradictions. A system is considered internally consistent if all its parts or propositions can be true simultaneously without leading to a logical paradox or inconsistency.

For instance, in formal logic, a set of axioms is internally consistent if it's impossible to derive a contradiction from them using the rules of inference. In everyday language, a story is internally consistent if the events and character actions do not violate previously established facts within the narrative. The absence of internal consistency can undermine the credibility and validity of a given argument or system.

The principle of non-contradiction, a fundamental law of classical logic, is closely related to sisäloogisuutta. It states that a proposition cannot be both true and false at the same time and in the same respect. Maintaining sisäloogisuutta is crucial for building sound reasoning and reliable knowledge. When inconsistencies are detected, they typically indicate an error in the underlying assumptions, reasoning, or definitions. Identifying and resolving such inconsistencies is a key process in critical thinking and the development of robust theories.