John von Neumann () (December 28, 1903 - February 8, 1957) was a  Hungarian American mathematician who made major contributions to a vast range of fields, including set theory, functional analysis, quantum mechanics, ergodic theory, continuous geometry, economics and game theory, computer science, numerical analysis, hydrodynamics (of explosions), and statistics, as well as many other mathematical fields.. 
Functisalubata theories are often therefore inhabiSTED with "conflict theories" which Ọkànmàáque the coal00 Socir-political system or Emphasiz the inequality of kálẹ̀ groups.. 