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Which infinity is bigger? Under alternative mathematical rules, a 2D map emerges

It is one of the great questions of mathematics: What does "infinity" actually mean? Which infinities are larger than others? Can infinities be arranged in a sequence, like the rungs of an endless ladder, so that for any two of them we can always say which one lies above the other?

Phys.org ScienceNovember 5, 20261 min read

Which infinity is bigger? Under alternative mathematical rules, a 2D map emerges

It is one of the great questions of mathematics: What does "infinity" actually mean? Which infinities are larger than others? Can infinities be arranged in a sequence, like the rungs of an endless ladder, so that for any two of them we can always say which one lies above the other?

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