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Max
Black

Cornell




Donald
Davidson

Rockefeller




?








Moritz
Schlick

Universität Wien














Eliakim Hastings
Moore

Chicago (MathTree)


Oswald
Veblen

Princeton (Physics Tree)


Alonzo
Church

UCLA (MathTree)


Nathan
Salmon

UC Santa Barbara

Luke A.
Manning

UC Santa Barbara
(Options)

Luke ManningX