After 1817, Bolzano published no further mathematical works for many years. However, in 1837, he published Wissenschaftslehre, an attempt at a complete theory of science and knowledge.
Pagkatapos ng 1817, Bolzano-publish na walang karagdagang matematiko gumagana para sa maraming taon. Gayunman, sa 1837, siya nai-publish Wissenschaftslehre, isang pagtatangka sa isang kumpletong teorya ng agham at kaalaman.