Hilbert's Hotel

About this app

The hotel with infinitely many rooms is full — and still admits 1, n or infinitely many new guests. Three scenarios as a 3D move.

Subject: Visual proofs

More from Visual proofs

• Achilles and the Tortoise (Zeno)
• Banach–Tarski: 1 orange becomes 2
• Little Gauss
• Why √2 is not rational

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