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Only the necessary information. Redundant concepts are omitted.

Socionics

The Sixteen Types
Alpha Quadra: ILE SEI ESE LII
Beta Quadra: SLE IEI EIE LSI
Gamma Quadra: SEE ILI LIE ESI
Delta Quadra: IEE SLI LSE EII
Functions / Information Elements
Quadras
Intertype Relations