▁S ense ▁and ▁Reference ", ▁ ▁originally ▁published ▁as ▁" ▁Über ▁S inn ▁und ▁Bedeutung " ▁in ▁Zeitschrift ▁für ▁Philosoph ie ▁und ▁philosoph ische ▁Krit ik , ▁vol . ▁ 1 0 0 , ▁pp .   2 5 – 5 0 . ▁ ▁Trans l . ▁Ge ach ▁& ▁Black ▁ 5 6 – 7 8 . ▁Mill , ▁J . ▁S ., ▁A ▁System ▁of ▁Log ic , ▁London ▁ 1 9 0 8 ▁( 8 th ▁edition ). ▁Peter ▁of ▁Spain ▁Sum m ula e ▁Log ical es , ▁ed . ▁I . ▁M . ▁Bo ch ens ki ▁( T ur in , ▁ 1 9 4 7 ) ▁– ▁also ▁quoted ▁in ▁Prior ▁ 1 9 7 6 . ▁Prior , ▁A . ▁N . ▁The ▁Do ctrine ▁of ▁Pro pos itions ▁& ▁Term s ▁London ▁ 1 9 7 6 . ▁St raw son , ▁P . ▁F . ▁" On ▁Refer ring ", ▁Mind ▁ 1 9 5 0 ▁pp .   3 2 0 – 4 4 . ▁William ▁of ▁O ck ham , ▁Sum ma ▁log ica e , ▁Paris ▁ 1 4 4 8 , ▁Bolog na ▁ 1 4 9 8 , ▁Ven ice ▁ 1 5 0 8 , ▁Oxford ▁ 1 6 7 5 . ▁ ▁Category : G ram mar ▁Category : Names ▁Category : Con cept s ▁in ▁logic ▁Category : Ph il osoph y ▁of ▁language <0x0A> </s> ▁Des perate ▁Justice ▁( aka ▁A ▁Mother ' s