Jung's inferior function vs Socionics role/DS
is the inferior function described by Jung equivalent to the socionics role function? Or the dual-seeking?
The inferior function secretly and mischievously influences the superior function most of all, just as the latter represses the former most strongly. [“The Phenomenology of the Spirit in Fairytales,” ibid., par. 431.]
Positive as well as negative occurrences can constellate the inferior counter-function. When this happens, sensitiveness appears. Sensitiveness is a sure sign of of the presence of inferiority. This provides the psychological basis for discord and misunderstanding, not only as between two people, but also in ourselves. The essence of the inferior function is autonomy: it is independent, it attacks, it fascinates and so spins us about that we are no longer masters of ourselves and can no longer rightly distinguish between ourselves and others. [“The Problem of the Attitude-Type,” CW 7, par. 85.]
Dual-seeking is closest, but to be honest, in Jung, functions are 1/4, not 1/8.
And, in some cases, Jung would speak of 2 inferiors, e.g. the bottom 2 (sensation and feeling in a thinking-intuitive).
I personally rather like how in socionics, inferiority is shown in terms of discordance between the 2 sides of the same Jungian function, aka having HA Fe but POLR Fi and so on.
I think most people at least recognize to a degree the place of each of the bottom 2, but end up not handling it very thoroughly and somewhat piecemeal.