[FOM] "This sentence is true"

Matt Insall montez at fidnet.com
Thu Sep 5 20:42:54 EDT 2002

Richard Grandy writes:  

Sometimes it is hard to tell if a sentence is a Liar:

This sentence is false iff Goldbach's conjecture is true.


I understand, and I agree.  
This is what makes the question of what 
to forbid a question about 
what is true and what is false, 
and which requires investigation, 
and is not prescribable by a machine.  

Matt Insall 
Associate Professor of Mathematics 
University of Missouri at Rolla 
Rolla MO 65409-0020 

montez at fidnet.com 

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