The Gallery
Logic
Rudolf Carnap
Saul Kripke
Bertrand Russell
Alan Turing
Ludwig Wittgenstein
Jean Cavaillès
Kurt Grelling
Moritz Schlick
Frank P. Ramsey
Otto Weininger
William Jevons
Peter Ramus
Pope John XXI
Boethius
Chrysippus
Zeno of Citium
Xenocrates
