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William Davidson
Niven
Cambridge (Physics Tree)


Josiah
Royce
Harvard (Philosophy Tree)


Clarence Irving
Lewis
Harvard (Philosophy Tree)


Willard Van Orman
Quine
Harvard (Philosophy Tree)


Alois Adolf
Riehl
Universität Berlin (Neurotree)

Wilhelm
Windelband
Universität Heidelberg (Philosophy Tree)


Paul
Hensel
University of Erlangen (Philosophy Tree)


Paul
Gordan
(Philosophy Tree)


Emmy
Noether
Bryn Mawr College


Otto
Hesse
Technische Hochschule München (Physics Tree)


Max
Noether
University of Erlangen


Hans
Reichenbach
(Philosophy Tree)


Hilary Whitehall
Putnam
Harvard (Philosophy Tree)

Joan
Lukas
(Options)

Joan LukasX