Pra 2333531 212997324 2008-05-17T07:13:11Z Kauczuk 1670727 pl: '''Pra''' may refer to: *[[Pra River]] *[[Physical Review A]], a scientific journal, publication of the American Physical Society *[[Primitive recursive arithmetic]], one proposed formalization of finitary methods in mathematics '''See also''' *[[PRA]] {{disambig}} [[pl:Pra]]