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အကျဉ်းချုပ်
ဖော်ပြချက်Infinity paradoxon - one-to-one correspondence between infinite set and proper subset.gif
English: viewing lines as infinite sets of points, the left half of the lower blue line can be mapped one-to-one (green correspondences) to the higher blue line, and in turn to the whole lower blue line (red correspondences); therefore the whole lower blue line and its left half have the same cardinality