The Sixteen Types

Four Natures, Sixteen Forms

Per quaternitatem ad individuationem — “Through the quaternary to individuation”Jung, The Archetypes and the Collective Unconscious, CW 9i

Model L Profiles

The Sixteen Type Pages

Each type page combines the classical Model A stack with the expanded Model L lens, including capacities, monadic positions, vignettes, and dual relationship material.

ILE The Inventor α Alpha NT Researchers Dual: SEI Base: Ne — Ideas

SEI The Nurturer α Alpha SF Socials Dual: ILE Base: Si — Senses

ESE The Host α Alpha SF Socials Dual: LII Base: Fe — Emotions

LII The Analyst α Alpha NT Researchers Dual: ESE Base: Ti — Laws

EIE The Icon β Beta NF Humanists Dual: LSI Base: Fe — Emotions

LSI The Inspector β Beta ST Pragmatists Dual: EIE Base: Ti — Laws

SLE The Conqueror β Beta ST Pragmatists Dual: IEI Base: Se — Force

IEI The Mystic β Beta NF Humanists Dual: SLE Base: Ni — Telos

SEE The Opportunist γ Gamma SF Socials Dual: ILI Base: Se — Force

ILI The Critic γ Gamma NT Researchers Dual: SEE Base: Ni — Telos

LIE The Entrepreneur γ Gamma NT Researchers Dual: ESI Base: Te — Pragmatism

ESI The Guardian γ Gamma SF Socials Dual: LIE Base: Fi — Relations

LSE The Practitioner δ Delta ST Pragmatists Dual: EII Base: Te — Pragmatism

EII The Counsellor δ Delta NF Humanists Dual: LSE Base: Fi — Relations

IEE The Explorer δ Delta NF Humanists Dual: SLI Base: Ne — Ideas

SLI The Craftsman δ Delta ST Pragmatists Dual: IEE Base: Si — Senses

Type Dichotomies

Fifteen Ways to Divide Sixteen

The sixteen types are generated by four independent binary distinctions. Once those four switches exist, the mathematics does not stop at four: every non-empty combination of the four can itself be read as a balanced split of the socion. Four independent binary axes produce 2⁴ - 1 = 15 non-zero ways to divide the sixteen types into two equal groups of eight.

The first four are the familiar Jungian dichotomies: the foundation distinctions from which the type system is generated. The remaining eleven are the Reinin dichotomies, named for Grigoriy Reinin, a mathematician, psychologist, and early socionics researcher associated with Augusta's circle. Reinin gave the additional dichotomies their mathematical basis by showing that the type structure implies fifteen symmetrical type traits, not merely the four foundation splits.

This does not mean every derived dichotomy is equally useful for typing or equally settled in interpretation. It means the breakdown is structurally demanded by the sixteen-type matrix. Each type belongs to one side of every dichotomy; taken together, those fifteen placements uniquely locate the type inside the socion. The cards below present the full table as paired visual oppositions: Jungian first, Reinin second.

Soviet constructivist illustration of a scholar tracing a structural line on a monumental illuminated polyhedron on a plinth, amber light emanating from within

Animated Map

Fifteen Balanced Splits

Every non-empty combination of the four foundation switches divides the sixteen types into two equal groups of eight.

Side A

Side B

E/I S/N T/F J/P

1. Energiser vs Integrator

Energiser type dichotomy side — Energiser

Breadth-oriented, proactive, and inclined to start things. Extraverted elements occupy the Obvious functions.

Energiser: ILE, ESE, EIE, SLE, SEE, LIE, LSE, IEE

Integrator type dichotomy side — Integrator

Depth-oriented, reactive, and inclined to finish things. Introverted elements occupy the Obvious functions.

Integrator: SEI, LII, LSI, IEI, ILI, ESI, EII, SLI

Whether extraverted elements occupy the Obvious functions (1, 3, 6, 8) or introverted ones do. Energisers are breadth-oriented, proactive, and tend to start things; Integrators are depth-oriented, reactive, and tend to finish things.

Traditionally: E/I, derived here from function structure rather than asserted directly.

2. Sensory vs Intuitive

Confident with concrete reality, physical detail, and managing the immediate world.

Sensory: SEI, ESE, LSI, SLE, SEE, ESI, LSE, SLI

Intuitive type dichotomy side — Intuitive

Confident with abstraction, possibility, pattern, and meanings beyond the immediate concrete field.

Intuitive: ILE, LII, EIE, IEI, ILI, LIE, EII, IEE

Whether sensory elements occupy the Strong functions (1, 2, 7, 8) or intuitive ones do. Sensors are confident managing concrete reality and physical detail; Intuitors are confident with abstraction, possibility, and pattern.

3. Logical vs Ethical

Confident reasoning with facts, systems, mechanisms, and impersonal structure.

Logical: ILE, LII, LSI, SLE, ILI, LIE, LSE, SLI

Confident reading people, values, relational meaning, and emotional dynamics.

Ethical: SEI, ESE, EIE, IEI, SEE, ESI, EII, IEE

Whether logical elements occupy the Strong functions or ethical ones do. Logicians reason confidently with facts, systems, and mechanisms; Ethicists read people, values, and emotional dynamics confidently.

4. Rational vs Irrational

Motivated by acknowledged obligations, using desires and interests to support them.

Rational: ESE, LII, EIE, LSI, LIE, ESI, LSE, EII

Irrational type dichotomy side — Irrational

Motivated by interests and instincts, using obligations to justify or organise them.

Irrational: ILE, SEI, SLE, IEI, SEE, ILI, IEE, SLI

Whether judgement elements occupy the Demanding functions (1, 3, 5, 7) or perception elements do. Rationals are motivated by acknowledged obligations and use desires to support them; Irrationals are motivated by interests and instincts and use obligations to justify their desires.

Traditionally: not the MBTI J/P distinction.

5. Reductionist vs Holist

Reductionist type dichotomy side — Reductionist

Sees separate, bounded pieces and complete state-shifts. Static elements occupy Public functions.

Reductionist: ILE, LII, LSI, SLE, SEE, ESI, EII, IEE

Sees continuous interconnection, gradual transitions, and the whole before the parts. Dynamic elements occupy Public functions.

Holist: SEI, ESE, EIE, IEI, ILI, LIE, LSE, SLI

Whether static elements occupy the Public functions (1-4) or dynamic ones do. Reductionists see the world in separate, bounded pieces and complete state-shifts; Holists see continuous interconnection, gradual transitions, and the whole picture before the parts.

Traditionally: Static/Dynamic.

6. Accepter vs Rejecter

Disposed toward peacekeeping, exploration, appreciation, and consensus. Appreciating elements are Valued.

Accepter: ILE, SEI, ESE, LII, LSE, EII, IEE, SLI

Disposed toward confrontation, impact, clashing wills, and leaving a mark. Repudiating elements are Valued.

Rejecter: EIE, LSI, SLE, IEI, SEE, ILI, LIE, ESI

Whether appreciating elements or repudiating elements are Valued. Accepters tend toward peacekeeping, exploration, appreciation, and consensus; Rejecters tend toward confrontation, impact, clashing wills, and leaving a mark.

Traditionally: Judicious/Decisive.

7. Clarifier vs Integrifier

Clarifier type dichotomy side — Clarifier

Values personality, clear principles, guiding philosophy, group enthusiasm, and signal over noise.

Clarifier: ILE, SEI, ESE, LII, EIE, LSI, SLE, IEI

Integrifier type dichotomy side — Integrifier

Values character, competence, case-by-case judgement, matter-of-fact communication, and preserving complexity.

Integrifier: SEE, ILI, LIE, ESI, LSE, EII, IEE, SLI

Whether resolving elements or differentiating elements are Valued. Clarifiers value personality, clear principles, guiding philosophy, enthusiastic group communication, and signal over noise; Integrifiers value character, competence, case-by-case judgement, matter-of-fact one-to-one communication, and keeping the noise even at the expense of signal.

Traditionally: Merry/Serious.

8. Identifying vs Transforming

Identifying type dichotomy side — Identifying

Seeks the right relationship with existence: closeness versus distance, harmony versus independence.

Identifying: ILE, SEI, ESE, LII, SEE, ILI, LIE, ESI

Transforming type dichotomy side — Transforming

Seeks the right locus of change: changing the universe versus developing oneself.

Transforming: EIE, LSI, SLE, IEI, LSE, EII, IEE, SLI

Whether the type arranges stubborn and flexible elements around identity or transformation. Identifying types seek the right relationship with existence: closeness versus distance, harmony versus independence. Transforming types seek the right locus of change: changing the universe versus developing oneself.

Traditionally: Democratic/Aristocratic.

9. Determined vs Exacting

Determined type dichotomy side — Determined

Fixed in views of future outcomes and aims. Intuitive elements are in the Stubborn functions.

Determined: SEI, LII, EIE, SLE, SEE, LIE, EII, SLI

Fixed in views of present conditions and detail. Sensory elements are in the Stubborn functions.

Exacting: ILE, ESE, LSI, IEI, ILI, ESI, LSE, IEE

Whether intuitive or sensory elements are in the Stubborn functions. Determined types are fixed in their view of future outcomes and aims; Exacting types are fixed in their view of present conditions, detail, and what they will experience.

Traditionally: Strategic/Tactical.

10. Contrarian vs Obstinate

Contrarian type dichotomy side — Contrarian

Fixed in how they are feeling and in the right way to treat others. Ethical elements are Stubborn.

Contrarian: ILE, ESE, EIE, SLE, ILI, ESI, EII, SLI

Obstinate type dichotomy side — Obstinate

Fixed in what they are thinking and in the right way to understand how things work. Logical elements are Stubborn.

Obstinate: SEI, LII, LSI, IEI, SEE, LIE, LSE, IEE

Whether ethical or logical elements are in the Stubborn functions. Contrarians are fixed in how they are feeling and in the right way to treat others; Obstinates are fixed in what they are thinking and in the right way to understand how things work.

Traditionally: Constructivist/Emotivist.

11. Space-Locked vs Time-Locked

Space-Locked type dichotomy side — Space-Locked

Confident being here or elsewhere, balancing strategy with tactics and spatial orientation.

Space-Locked: ILE, SEI, EIE, LSI, LIE, ESI, IEE, SLI

Time-Locked type dichotomy side — Time-Locked

Confident acting now or across past/future, balancing innovation with logistics and temporal orientation.

Time-Locked: ESE, LII, SLE, IEI, SEE, ILI, LSE, EII

Whether the type is confidently oriented to spatial or temporal relationships. Space-Locked types are confident being here or elsewhere and balancing strategy with tactics; Time-Locked types are confident acting now or across past/future and balancing innovation with logistics.

Traditionally: Carefree/Farsighted.

12. Sight-Locked vs Speech-Locked

Sight-Locked type dichotomy side — Sight-Locked

Confident seeing facts or intentions through visual, observational, and between-the-lines processing.

Sight-Locked: ILE, SEI, SLE, IEI, LIE, ESI, LSE, EII

Speech-Locked type dichotomy side — Speech-Locked

Confident saying what is true or what appeals through verbal and declarative processing.

Speech-Locked: ESE, LII, EIE, LSI, SEE, ILI, IEE, SLI

Whether the type is confidently oriented to visual/observational or verbal/declarative processing. Sight-Locked types are confident seeing facts or intentions; Speech-Locked types are confident saying what is true or what appeals.

Traditionally: Yielding/Obstinate, unrelated to the Obstinate side of dichotomy 10.

13. Affirmer vs Denier

Moves toward what is wanted, proposing and pursuing a valued path positively.

Affirmer: ILE, ESE, LSI, IEI, SEE, LIE, EII, SLI

Moves away from what is not wanted, defining the field by exclusion and refusal.

Denier: SEI, LII, EIE, SLE, ILI, ESI, LSE, IEE

Whether assertive functions move toward what is wanted or away from what is not wanted. Affirmers propose and pursue a valued path positively; Deniers define the field by exclusion, refusal, and moving away from what must not be accepted.

Traditionally: Positivist/Negativist.

14. Thetic vs Antithetic

Sets out the valued path from within its quadra structure and tends toward sustainable balance.

Thetic: ILE, LII, EIE, IEI, SEE, ESI, LSE, SLI

Antithetic type dichotomy side — Antithetic

Introduces a crucial outside element, bringing tension, correction, and redirecting pressure.

Antithetic: SEI, ESE, LSI, SLE, ILI, LIE, EII, IEE

Whether the type sets out the valued path from within its quadra structure or introduces a crucial outside element that redirects it. Thetics tend toward sustainable balance; Antithetics bring tension, correction, and an outside pressure that changes the route.

Traditionally: Asking/Declaring.

15. Clockwise vs Anticlockwise

Clockwise type dichotomy side — Clockwise

Information flow associated here with progress and forward movement through the Model A grid.

Clockwise: ILE, SEI, EIE, LSI, SEE, ILI, LSE, EII

Anticlockwise type dichotomy side — Anticlockwise

Information flow associated here with consolidation, delay, and deepening what has been built.

Anticlockwise: ESE, LII, SLE, IEI, LIE, ESI, IEE, SLI

The direction of information flow through the Model A grid. This is the all-four-foundation split, corresponding here to the classic Process/Result dichotomy.

Traditionally: Process/Result.

Structural tiers: dichotomies 1-4 are the Jungian foundation and generate the type code directly. Dichotomies 5-7 distinguish types within clubs. Dichotomies 8-12 describe deeper structural orientations. Dichotomies 13-15 describe the type's relationship to social and historical context.

Note: the mathematics establishes the existence of fifteen symmetrical divisions. It does not, by itself, prove every behavioural description attached to those divisions. The Jungian dichotomies remain the accepted foundation; the Reinin dichotomies are best treated as structural consequences whose practical interpretation is more tentative.

Small Groups

Seven Four-Type Families

Small groups divide the socion into four sets of four types. The chart data is encoded on each card through its group family, group name, and member types, so the visual cards remain tied to the underlying structure.

Alpha

ILE — SEI — ESE — LII

Innovator, Nurturer, Host, Analyst.

Beta

EIE — LSI — SLE — IEI

Icon, Inspector, Conqueror, Mystic.

Gamma

SEE — ILI — LIE — ESI

Opportunist, Critic, Entrepreneur, Guardian.

Delta

LSE — EII — IEE — SLI

Practitioner, Counsellor, Explorer, Craftsman.

Intellectual

ILE — LII — ILI — LIE

Innovator, Analyst, Critic, Entrepreneur.

Socialite

SEI — ESE — SEE — ESI

Nurturer, Host, Opportunist, Guardian.

Humanitarian

EIE — IEI — EII — IEE

Icon, Mystic, Counsellor, Explorer.

Realist

LSI — SLE — LSE — SLI

Inspector, Conqueror, Practitioner, Craftsman.

Acquisitive

ILE — SLE — SEE — IEE

Innovator, Conqueror, Opportunist, Explorer.

Aligning

SEI — IEI — ILI — SLI

Nurturer, Mystic, Critic, Craftsman.

Obliging

ESE — EIE — LIE — LSE

Host, Icon, Entrepreneur, Practitioner.

Normative

LII — LSI — ESI — EII

Analyst, Inspector, Guardian, Counsellor.

Decency

ILE — ESE — ILI — ESI

Innovator, Host, Critic, Guardian.

Accomplishment

SEI — LII — SEE — LIE

Nurturer, Analyst, Opportunist, Entrepreneur.

Authenticity

EIE — SLE — EII — SLI

Icon, Conqueror, Counsellor, Craftsman.

Truth

LSI — IEI — LSE — IEE

Inspector, Mystic, Practitioner, Explorer.

Teacher

ILE — SEI — LIE — ESI

Innovator, Nurturer, Entrepreneur, Guardian.

Diplomat

ESE — LII — SEE — ILI

Host, Analyst, Opportunist, Critic.

Activist

EIE — LSI — IEE — SLI

Icon, Inspector, Explorer, Craftsman.

Artist

SLE — IEI — LSE — EII

Conqueror, Mystic, Practitioner, Counsellor.

Proposer

ILE — LSI — SEE — EII

Innovator, Inspector, Opportunist, Counsellor.

Doubter

SEI — EIE — ILI — LSE

Nurturer, Icon, Critic, Practitioner.

Cycler

ESE — IEI — LIE — SLI

Host, Mystic, Entrepreneur, Craftsman.

Disruptor

LII — SLE — ESI — IEE

Analyst, Conqueror, Guardian, Explorer.

Figurehead

ILE — EIE — SEE — LSE

Innovator, Icon, Opportunist, Practitioner.

Cardinal

SEI — LSI — ILI — EII

Nurturer, Inspector, Critic, Counsellor.

Crusader

ESE — SLE — LIE — IEE

Host, Conqueror, Entrepreneur, Explorer.

Healer

LII — IEI — ESI — SLI

Analyst, Mystic, Guardian, Craftsman.