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Logical Limbo (Posted on 2002-08-12) Difficulty: 4 of 5
Prove that either

a) this problem is solvable

or

b) this problem is unsolvable

See The Solution Submitted by Cheradenine    
Rating: 3.2000 (15 votes)

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Self referential | Comment 9 of 33 |
If the problem were not self-referential, it would be simplicity itself to prove:

b = ~a

(a ∪ ~a) ⇒ T (a tautology)

The problem is that self-referential problems usually lead to paradox, and this possiblity must be examined first.

  Posted by TomM on 2002-08-13 02:51:55
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