### Abstract:

This article introduced and discussed the concepts of minimal Jonsson sets and respectively
strongly minimal Jonsson sets. On this basis, it introduces the concept of the independence of special subsets of existentially closed submodel of the semantic model. The notion of independence leads to the concept of basis and then we have an analogue of the Jonsson theorem on uncountable
categorical. The concept of strongly minimal, as for sets and so for theories played a decisive
role in obtaining results on the description of uncountable - categorical theories. It is well
known that Jonsson Theories are a natural subclass of the broad class of theories, as a class of
inductive theories. As is known, the basic examples theories of algebra are examples of inductive
theories, and they tend to represent an example of incomplete theories. This modern apparatus of
Model Theory developed mainly for complete theories, so nowadays technique studying incomplete
theories noticeable poorer than for complete theories. Thus, all of the above says that the study
of model-theoretic properties Jonsson theories is an actual problem. This article describes the
basic properties of the Morley rank over Jonsson subsets of semantic model for some Jonsson theory.