The functional composition principle is generalized by taking into account of
history of context change. Analysis of Peres' example shows hysteresis of value
assignments. It is shown that value assignments which depend on the history of
context change are possible in the case that the Hilbert space of state vectors
is finite dimensional.Comment: 22 pages. Errors in the previous proof of Proposition 5 were
corrected. This is the full version of "On Hysteresis of Value Assignments to
Observables during Changes of Context" in Foundations of Probability and
Physics - 4, eds. A. Yu. Khrennikov et al., AIP Conf. Proc. 889, 2007, pp.
422-42