Warp wrote:
>   I was thinking: Are there any other possibilities in logic than true,
> false or self-contradictory?

http://en.wikipedia.org/wiki/Paraconsistent

You also missed "Not a well-formed statement" as well as "valid but false" 
and "invalid but true."

-- 
Darren New, San Diego CA, USA (PST)
  "How did he die?"   "He got shot in the hand."
     "That was fatal?"
          "He was holding a live grenade at the time."

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