This criterion posits that each type of intelligence must have a core set of cognitive processes or operations. For example, linguistic intelligence involves operations like the ability to use language for expression and comprehension, while logical-mathematical intelligence includes the capacity for deductive reasoning and problem-solving with numbers. The distinct operations characterize each intelligence, making them identifiable and unique. This aspect is crucial as it provides a concrete basis for differentiating between the various intelligences, emphasizing that each is not just a skill but a distinct cognitive domain.