Logic: Munich, Ukrainian Publishing Society "Vernygora": 1947, 44 p.

In Petryshyn's work, logic is presented as philosophical or systematic thinking that aids in identifying and analyzing the essence of things. It reveals the laws and rules of philosophical thought, making logic the foundation of science responsible for setting its norms and rules. Emphasizing the importance of logical knowledge, the author analyzes the nature of concepts, judgments, and the process of adjudication, as well as the functions and principles of the syllogism. Author stresses the connection between logic, metaphysics, and psychology as disciplines that study human thinking.

CONTENTS

Introduction

About concept

Plato’s ideas. Limits of human’s thinking

About judgment

Inference (syllogism) or deduction