A shekara ta 1939, Feynman ya sami digiri na digiri, kuma an kira shi Putnam Fellow. Ya sami cikakkiyar ci a makarantar shiga makarantar shiga zuwa Jami'ar Princeton a cikin ilimin lissafi <unk> wani abin da ba a taɓa gani ba <unk> da kuma kyakkyawan sakamako a cikin lissafi, amma ya yi mummunan tarihi da sassan Ingilishi. Shugaban sashen ilimin lissafi a can, Henry D. Smyth, yana da wata damuwa, yana rubuta wa M. Philip Morse don tambaya: "Shin mu Yahudawa ne? Feynman ba shi da wata doka ta musamman game da Yahudawa, amma dole ne su ci gaba da sanya su a cikin sashenmu daidai da ka'idar Hellmann <unk> Feynman. "A shekarar 1939, Feynman ya sami digiri na digiri na farko, kuma an kira shi Putnam Fellow. Ya sami cikakkiyar ci a jarrabawar shiga makarantar digiri na biyu zuwa Jami'ar Princeton a fannin kimiyyar lissafi <unk> wani abin da ba a taɓa gani ba <unk> da kuma kyakkyawan sakamako a fannin lissafi, amma ya yi mummunan aiki a kan tarihin da sassan Ingilishi.
Ka'idar Ƙananan Ayyuka a Tsarin Kwayoyin