Intertype Dynamics

Intertype Dynamics is theory of how types relate to each other, by the functions they share or do not share. While Socionics has a well developed (and fairly familiar) system of this, MBTI ("Western type"), also has one, not as well known, provided by the Type Logic site.

Type	Type Logic relationship name	Functional difference	Socionics code	Socionics Relationship name
Completely compatible	(Same "Intentional Style")		(same quadra)
XXXX	Identity	—The same type	XXXx	Identical (Idn)
yXXX	Pal	differing only in I/E; same preferred functions	yXXy	Mirror (Mrr)
Xyyy	Supplement	same primary functions, two “blocks” reversed	Xyyy	Activity (Act)
yyyy	Anima	All four primary functions in reverse	yyyx	Duality (Dlt)
Incompatible	Opposite Intentional Style (all functions mutually in "shadow")		Alternate quadra (A-G or B-D)
yXXy	Contrast	(also called “opposing personality”); same function order, but attitudes reversed	yXXx	Contrary (Cnt)
XXXy	Complement	type with opposite J/P, which orients preferred functions differently	XXXy	Quasi-identical (Qid)
yyyX	Novelty	type sharing only J/P, which orients opposite functions	yyyy	Conflicting (Cnf)
XyyX	Enigma	McAlpine, “Dynamic Opposite”; all eight function-attitudes in reverse order	Xyyx	Super-Ego (Ego)
Rationally compatible	Intentional Style with common judgment tandem		Adjacent quadra (A-B or G-D)
XyXX	Neighbor	common rational function in same position (and rest of the arm or spine)	XyXx	Comparitive (Cmp)
yyXX	Counterpart	one’s dom. is the other’s aux.	yyXy	Supervision (Sp)*
XXyy	Advisor	one of one’s preferred function is other’s tert. or inf; with common I/E and S/N “language”	XXyy	Benefit (Bn)*
yXyy	Pedagogue	one of one’s preferred function is other’s tert. or inf.; opposite I/E	yXyx	Semi-duality (Sdl)
A-rationally compatible	Intentional style with common perception tandem		quadra A-D or B-G
XXyX	Companion	common a-rational function in same position, and by ext., the rest of the arm or spine	XXyx	Look-a-like (Lkl)
yXyX	Tribesman	one’s dom. is the other’s aux	yXyy	Supervision (Sp)*
XyXy	Suitemate	one of one’s preferred function is other’s tert. or inf.	XyXy	Benefit (Bn)*
yyXy	Cohort	one of one’s preferred function is other’s tert. or inf.; opposite I/E	yyXx	Illusionary (Ill)

• We "Supervise" type with aux. function as our dominant; and opposite other function
• We "Benefit" type whose aux. is our dominant in opposite attitude, and whose dominant is our tertiary