Theorem

This is the only theorem on this page.

Proof

The proof is obvious.

Reference

1. J.H. Conway, On Numbers And Games, A K Peters, 2000

Self-reference and apparent self-reference

1. Does It Blink?
2. Apparent paradox
3. Set of all subsets
4. An Impossible Page
5. Russell's paradox
6. An Impossible Machine
7. A theorem with an obvious proof
8. The Diagonal Argument
9. A link to a very similar puzzle

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Copyright © 1996-2012 Alexander Bogomolny