Wikipedia
Polylogism
Polylogism is the belief that different groups of people reason in fundamentally different ways (coined from Greek poly=many + logos= logic). The term is attributed to Ludwig von Mises, who claimed that it described Marxism and other social philosophies. In the Misesian sense of the term, a polylogist ascribes different forms of "logic" to different groups, which may include groups based on race, gender, class, or time period.