H. P.
Grice

Oxford






Alfred
Tarski

UC Berkeley


Robert Lawson
Vaught

UC Berkeley (MathTree)


Jack H.
Silver

UC Berkeley (MathTree)


Stanisław
Leśniewski

University of Warsaw


Alfred
Tarski

UC Berkeley


Robert Lawson
Vaught

UC Berkeley (MathTree)


John
Burgess

Princeton

Jack
Woods

Princeton
(Options)

Jack WoodsX