infinite subway paradox

The uncountable transfinite subway

We explore a more sophisticated version of the infinite subway paradox, with stations all the way to the uncountable ordinals and beyond

Sep 28, 2025 • Joel David Hamkins

The infinite subway paradox—extending into the transfinite

We extend the infinite subway paradox into the countable ordinals. Can you meet the infinite subway challenge?

Sep 19, 2025 • Joel David Hamkins

The infinite subway—a full range of paradox

The second in a series of essays on the infinite subway paradox, in which we explore the full range of paradoxical behavior

Sep 11, 2025 • Joel David Hamkins

The infinite subway paradox

The first in a series of essays on the infinite subway paradox

Sep 3, 2025 • Joel David Hamkins

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infinite subway paradox