Other concepts are necessary to apply ergodic theory.
In contemporary philosophy, there are at least three prevailing ways to understand what a concept is:Concepts as mental representations, where concepts are entities that exist in the mind (mental objects)Concepts as abilities, where concepts are abilities peculiar to cognitive agents (mental states)Concepts as Fregean senses, where concepts are abstract objects, as opposed to mental objects and mental statesConcepts can be organized into a hierarchy, higher levels of which are termed "superordinate" and lower levels termed "subordinate"
When the mind makes a generalization such as the concept of tree, it extracts similarities from numerous examples; the simplification enables higher-level thinking

