  (3) Before World War II, Lvov had a “philosophical branch” of a distinguished mathematical-philosophical school—the Lvov-Warsaw School. Despite the fact that Fleck had connections with this school, he never mentioned either Kazimierz Ajdukiewicz or Leon Chwistek, even though Chwistek’s idea of the multiplicity of reality (in art but also in life and science) has much in common with his theory of thought styles. In his writings Fleck makes a few critical remarks on conventionalists and logical empiricists; however, nothing really supports the claim that he knew their views well. Also, Fleck’s remarks on epistemology of Kant, Mach, Wundt and Uexküll’s are superficial and dispersed—he does not adopt views from them, but only looks for some superficial confirmation of his own claims. Thus, we cannot include Fleck among any esoteric philosophical circles.