Jungian foundation

The Jungian foundation (базис Юнга in Russian) refers to the original four dichotomies proposed by Jung and adapted somewhat by Augusta:

1. Extraversion / Introversion (sometimes called 'Extratim / Introtim')
2. Sensing / Intuition (Sensing is sometimes called 'Sensory')
3. Ethical / Logical
4. Rational / Irrational (occasionally called 'Shizotyme / Cyclotyme' or 'Rigid / Labile')

One trait of each dichotomy is dominant for each type. Any combination of these traits is possible, producing 16 types (2⁴ = 16). Two of Jung's dichotomies -- rational/irrational and extraverted/introverted -- are uniform across all types. In other words, an IEE is just as extraverted (in the Jungian sense!) as an SLE. The other two dichotomies -- sensing/intuitive and ethical/logical -- are non-uniform. In other words, an ESE is not sensing in the same way that an SEE is, and an ILI is "more" intuitive than an LIE.