The scientific heritage of the Ukrainian scientist S. Baley is investigated in the field of the
logic. The structure, problems and terminology of the textbook "Essay of Logic" by S. Baley
are analyzed.In the references the author's styleis unchanged with the knowledge that this is
not about the style and grammar, but about the formation and development of the logic in
Ukrainian science.
1. Baley S. Zibrannya prats: U 5 t. i 2 kn.[Collected Works: 5 volumes and 2 books], Lviv–Odesa:
IFLIS LFS “Cogito”, 2002. T. 1.488 p. 2. Ivanyk S. Lvivskyy Froyd – Stepan Baley [Lviv Freud – Stepan
Balay]. URL: https://zaxid.net/lvivskiy_froyd__stepan_baley_n1241373. 3. Vyznachni postati
Ternopillya. Biohr. [Famous figures of Ternopil region. Biography] Zbirnyk Upor.: O. H. Bench,
V. M. Troyan. K. : Dnipro, 2003. 232 p. 4. Cherkaska H. Stepan Baley [Stepan Balеу]. URL:
http://uahistory.com/topics/famous_people/9057. 5. Petryuk P. T., Bondarenko L. I. Akademik Stepan
Volodymyrovych Baley: biohrafichni ta naukovi aspekty (do 125-richchya z dnya narodzhennya)
[Academician Stepan Vladimirovich Balеу: Biographical and scientific aspects (up to the 125th
anniversary of his birth)]. Zhurnal psykhyatryy y medytsynskoy psykholohyy, 2011. No. 1. P. 83–93.
6. Aristotel'. Sochineniya v chetyrekh tomakh.Т. 2 [Works in four volumes. V. 2] T. 2. Moskva: Nauka,
1978. 687 p. 7. Koen M., Nagel' E. Vvedeniye v logiku i nauchnyy metod [Introduction to Logic and
Scientific Method] / MorrisKoen; ErnestNagel'; per. s angl. P.S. Kusliya. Chelyabinsk: Sotsium, 2010.
655 p. 8. Kondakov I. Logicheskiy slovar'-spravochnik [Logical dictionary reference]. Moskva: Nauka,
1975. 720 p.