Many people with fibromyalgia continue to work full or part time. But the chronic pain and fatigue associated with fibromyalgia often make working very difficult. If you are employed, it's important to learn about managing fibromyalgia symptoms and coping with pain and fatigue.
Definition of SET THEORY. : a branch of mathematics or of symbolic logic that deals with the nature and relations of sets.
theory. n, pl-ries. 1. a system of rules, procedures, and assumptions used to produce a result. 2. abstract knowledge or reasoning. 3. a speculative or conjectural view or idea: I have a theory about that. 4. an ideal or hypothetical situation (esp in the phrase in theory). 5. a set of hypotheses related by logical or mathematical arguments to explain and predict a wide variety of connected phenomena in general terms: the theory of relativity.