Which philosopher, 1872 - 1970, co-wrote 'Principia Mathematica' with A.N. Whitehead?
which philosopher, 1872 - 1970, co-wrote 'principia mathematica' with a.n. whitehead
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philosopher principia mathematica
philosopher principia mathematica
m.02h6fbs m.060lp
people.profession.people_with_this_profession book.written_work.author
m.01bpn
bertrand russell
m.01bpn
bertrand russell