%0 Conference Article %T EQUIVALENT IN MATHEMATICS AND COMPUTER SCIENCE %A Poyarkov, I.A. %A Ilyin, E.S. %K equivalence, logic, algorithms, programming, set theory %J CHALLENGING ISSUES IN SYSTEMS MODELING AND PROCESSES %D 2025 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov