Some members of the Roman Catholic Church were also unhappy because Bolzano's lectures contains elements of rationalism. He certainly had supporters within the Church, for example the important Archbishop of Prague and Dr Fessl who directed the seminary of Leitmeritz.
Ang ilang mga miyembro ng Simbahang Katoliko Romano ay nasisiyahan din dahil Bolzano ng lektura ay naglalaman ng mga sangkap ng lamang. He certainly had Supporters sa loob ng Iglesia, para sa mga halimbawa ng mahalagang Archbishop ng Prague at Dr Fessl na Directed sa seminaryo ng Leitmeritz.