[FOM] A paper of Smullyan

I. Natochdag natochdag at elsitio.net.uy
Tue Aug 3 23:35:34 EDT 2004

In "Languages in which self reference is possible"(Journal of symbolic 
logic) Raymond Smullyan makes reference to a paper titled: "Systems of 
protosyntax self-applied". In it he applies the norm function and 
concatenation to a form of protosyntax self-applied. What is the 
reference for the article???????  
                              Thank you,

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