The LIE leads with extraverted logic (Te) and the LII leads with introverted logic (Ti). Both are logical types oriented toward structural understanding and systematic thinking, but Te and Ti are opposite orientations on the same logical dimension. Te is oriented toward external results, efficient processes and measurable outcomes; Ti is oriented toward internal consistency, logical architecture and the correctness of the underlying framework. Each type's leading function is the other's seventh, Ignoring function: the LIE's Te sits seventh in the LII's stack and the LII's Ti seventh in the LIE's, so each is capable in what the other leads with but does not value it.
Common friction points
The LIE's pace and orientation toward action and achievement can feel destabilising to the LII, who needs careful, sequential logical work rather than fast external output. The LII's deliberate, internally-oriented approach can feel frustratingly slow to the LIE, who experiences delay as a concrete cost.
Both types are intellectually capable and both genuinely value rigour. The Extinguishment frustration arises not from a lack of substance but from leading instruments that face in opposite directions. Productive collaboration is possible when each type is clearly allocated to their own domain.
Where each type's functions land
The creative functions follow the leading ones into the Id. The LIE's Ni is the LII's Demonstrative Ni and the LII's Ne is the LIE's Demonstrative Ne. The LII can see where a strategy is heading and the LIE can come up with alternatives, but each treats that ability as incidental. So each type's whole approach, leading and creative together, is something the other can reproduce and does not care for, which is why agreement at the level of argument does not turn into agreement about what to do.
Their needs fall on each other's Role. The LIE's Suggestive Fi is the LII's Role Fi, and the LII's Suggestive Fe is the LIE's Role Fe. The LII can offer the LIE some personal loyalty and the LIE can bring some warmth to a room for the LII, but in both cases it is dutiful rather than natural. Their Vulnerable functions sit in each other's Mobilising: the LIE's Vulnerable Si is the LII's Mobilising Si and the LII's Vulnerable Se is the LIE's Mobilising Se. Neither can reliably shield the other from neglecting their health or from being pushed around.
The practical upshot is a relationship that works best around clearly defined tasks. When the LIE owns the timetable and the LII owns the method, and both keep personal life somewhat separate, the mutual respect holds without the dampening effect spreading into everything else.
How this Extinguishment plays out
Both LIE and LII lead with logical functions, and the surface mind-feel is closely related. The LIE produces operational drive (Te) backed by long-horizon vision (Ni); the LII produces analytical framework (Ti) backed by lateral possibility (Ne). Both prize careful thinking, both find sloppy reasoning offensive, both can be trusted to handle the analytical work without need for supervision. The opening conversation often has a particular satisfaction: two logical minds at work without performance.
The systematic inversion runs through every function. The LIE's outward-operational logic is inverted by the LII's inward-structural logic; the LIE's inward-strategic intuition is inverted by the LII's outward-possibility intuition. The arguments make sense to each at the level of construction; the conclusions rarely quite line up. The Gamma-Alpha quadra divide intensifies this: what counts as a valid conclusion in Gamma operational-strategy (efficient outcome, defended margin) is not what counts in Alpha analytical-play (internal consistency, conceptual completeness).
This pair appears in certain advisory and consulting partnerships in which the LIE handles execution and the LII handles methodology, academic-practitioner configurations sustained on mutual respect for careful work, occasional family pairings in which both partners are analytically rigorous in different ways. The pair is genuinely productive in defined intellectual roles and recognisably destabilising in continuous shared life. Alpha-Gamma logic-leader Extinguishment tends to run intellectually compatible and quietly tiring.
The Extinguishment row on LIE in relationships and LII in relationships places this pairing among the other relations each type has.