Mental Integrations as Functional Wholes

It is argued that a mental integration is formed only if the result is a functional whole. This idea is then used to clarify the definition of a concept and discuss problems in which an instance may belong to different conceptual classes depending on the context. The same idea is also applied to the rules for dealing with an entity when it is formed out of sub-entities. Specific examples of how such rules are frequently violated in literature as well as colloquially are discussed.