– Influenced by Hegel and Marx, Petrović devotes space to dialectical logic (contradictions, change, totality). However, the book’s core is formal logic (classical propositional and predicate calculus), which he treats as necessary but not sufficient for scientific and philosophical reasoning.
: Gajo Petrović (1927–1993) was a prominent Yugoslav philosopher and one of the central figures of the internationally acclaimed Praxis School . This Marxist-humanist movement fiercely critiqued dogmatic Soviet Stalinism and championed individual human freedom and creative action ("praxis").
The new edition follows a revised chapter sequence:
. While contemporary logic has shifted heavily toward mathematical logic and computational applications, Petrović’s work focuses on the "art of thinking." gajo petrovic logikapdf new
: Discusses the logical foundations of scientific research and the structure of theories. e-filozofija Strengths and Academic Value Pedagogical Excellence
: Deriving a conclusion from a single premise (e.g., through conversion or opposition via the Logical Square).
They spoke of totality—how individual phenomena demand to be understood within larger social structures. He recalled the debates of his youth, the heated seminars and quieter afternoons when Marx and Hegel interrupted each other on the page. In that older language he found a persistent demand: to grasp contradictions without dissolving them into easy reconciliations. – Influenced by Hegel and Marx, Petrović devotes
Because the book is a staple of philosophy curricula across the Balkans, clean, high-quality digital copies are highly sought after by students. Various academic platforms host digitized versions of the book:
Identification of common errors in reasoning. Part II: Methods of Knowledge (Metode Spoznaje)
: Unlike many modern logic texts that dive straight into symbols, this book provides the philosophical evolution of logical thought, connecting formal rules to human reasoning. Breadth of Content and the scientific method.
: Explores the methods of reasoning from specific instances to general laws, heavily influenced by the works of John Stuart Mill Symbolic Logic
First published in the mid-1960s, his textbook Logika was written with a specific pedagogical goal: to teach students . Petrović defines logic not merely as an abstract mathematical game, but as an essential tool for human liberation, critical thinking, and the scientific method. 📑 Core Structure of the Textbook
The process of deriving a new proposition from existing ones. His work meticulously covers deductive syllogisms and inductive reasoning. Philosophical Context: The Praxis Connection