0
The Theory of the Leisure Class was created in 1899.
Classical theory is a reference to established theory. Fuzzy set theory is a reference to theories that are not widely accepted.
how does W.E.B. Du Bois define " the theory of laboring class unity?
Set theory was founded by Georg Cantor in 1873.
Set theory is the mathematical study of sets. Set theory in business is important because it assists with the operations and planning in a business.