Erich H. Reck/ Steve Awodey/ Gottfried Gabriel/ Gottlob Frege/ Rudolf Carnap
(2)
Gottlob Frege (EDT)/ Bertrand Russell (EDT)/ Arthur Sullivan (EDT)
(1)
Gottlob Frege/ Dale Jacquette (TRN)/ Daniel Kolak (EDT)
(1)
Gottlob Frege/ Terrell Ward Bynum (EDT)
(1)