Abstract:Ìè êîðèñòóâàòèìåìîñü òåðìiíîëîãi¹þ ç [8, 16, 17].Íàäàëi ó òåêñòi ïîòóaeíiñòü ìíîaeèíè A ïîçíà÷àòèìåìî ÷åðåç |A| i ìíîaeèíó íàòóðàëüíèõ ÷èñåë ÷åðåç N.ßêùî âèçíà÷åíå ÷àñòêîâå âiäîáðàaeåííÿ α : X Y ç ìíîaeèíè X ó ìíîaeèíó Y , òî ÷åðåç dom α i ran α áóäåìî ïîçíà÷àòè éîãî îáëàñòü âèçíà÷åííÿ òà îáëàñòü çíà÷åíü, âiäïîâiäíî, à ÷åðåç (x)α i (A)α îáðàçè åëåìåíòà x ∈ dom α òà ïiäìíîaeèíè A ⊆ dom α ïðè ÷àñòêîâîìó âiäîáðàaeåííi α, âiäïîâiäíî. ×àñòêîâå âiäîáðàaeåííÿ α : X Y íàçèâà¹òüñÿ êî-ñêií÷åííèì, ÿêùî ìíîaeèíè X \ dom α… Show more
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