[1] It is a philosophical theory associated with Tadeusz Kotarbiński who proposed that it involves both the proper view about the kinds of objects that exist and the literal way of speaking about things.
[2] However, Kotarbiński's reism – as proposed – was not a ready theory of the world but a program with the aim of eliminating apparent terms (onomatoids) and partial successes.
[5] Kotarbiński's model adopted the formal logic of Lesniewski and his rejection of the classical set-theoretic conception of classes in favor of the mereological whole.
[5] Kotarbiński later cultivated his philosophical connection with Brentano and Kazimierz Twardowski since these authors focused on intentionality.
[7] Kazimierz Ajdukiewicz challenged Kotarbiński's conceptualization of reism, arguing that the statement that "every object is a thing" is a truism.