Logical Type

The category of information, as distinct from its logical level. Derived from Bertrand Russell's Theory of Logical Types, this concept distinguishes between a class and its members. In NLP, confusing logical types is a source of many communication problems and limiting beliefs. For example, 'Ducks are a different logical type from Cars' — both are objects, but they belong to entirely different categories. Gregory Bateson's application of this theory influenced the development of NLP's approach to communication and change.