Dialectic operations: the final period of cognitive development.
D000328:Adult; D000375:Aging; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D003405:Creativity; D006801:Humans; D007360:Intelligence; D008128:Logic; D008960:Models, Psychological; D009790:Occupations; D010684:Philosophy; D012918:Social Alienation; D012923:Social Class; D013997:Time Factors