On the Dual Structure of Intelligence: The Synergistic Interaction of Inherent Intelligence, Expressed Intelligence and Cognitive Symbol Systems

Traditional intelligence research has mostly focused on the single dimension of IQ assessment, failing to explain the realistic paradox that "individuals with high IQ may underperform without mastering relevant tools, while those with relatively lower IQ can surpass others by virtue of specific tools". This paper puts forward the conjecture of the dual structure of intelligence, dividing intelligence into two core categories: inherent intelligence and expressed intelligence. Meanwhile, it introduces cognitive symbol systems as the intermediary tool connecting the two, and intuitive intelligence as an emergent characteristic of high inherent intelligence. Through conceptual definition, logical deduction, case verification and symbolic argumentation based on logic, this paper demonstrates that inherent intelligence is the "hardware foundation" of intelligence, expressed intelligence is the "apparent manifestation" of intelligence, cognitive symbol systems are the "software tools" for improving expressed intelligence, and intuitive intelligence is a product of the self-organizing nature of the brain in individuals with high inherent intelligence. This theoretical framework breaks the limitation of the single IQ determinism and provides a new philosophical perspective for understanding the multi-dimensional manifestation mechanism of human intelligence. Keywords: Inherent Intelligence; Expressed Intelligence; Cognitive Symbol System; Intuitive Intelligence; Dual Structure of Intelligence.