In this paper he presented his invention of the heterodox system of set theory, which is known as NF set theory after the title of the paper. Quine presented no model for this theory, nor did he prove that the system was consistent.
Sa papel na ito ipinapahayag niya ang kanyang mga likha ng heterodoks sistema ng set theory, na kung saan ay kilala bilang NF set teorya matapos ang pamagat ng papel. Quine ipinapahayag walang modelo para sa teorya na ito, at hindi rin siya ay patunayan na ang sistema ay pare-pareho.