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- Path: sparky!uunet!spool.mu.edu!wupost!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!ohstpy!miavx1!khmak
- Newsgroups: comp.theory
- Subject: 2 stack PDA and other questions
- Message-ID: <1992Dec13.162048.14632@miavx1.acs.muohio.edu>
- From: khmak@miavx1.acs.muohio.edu
- Date: 13 Dec 92 16:20:48 -0500
- Organization: Miami University Academic Computer Service"
- Lines: 18
-
- A few days ago someone posted a few questions that I was also curious about
- knowing the answer to. Here they are:
-
-
- Why is a 2 stack PDA equivalent to a turing machine?
- Why is it important to know if there is at least one decision problem that is
- undecidable?
-
- Who cares if P=NP? Or what is the significance of the question "Is P=NP"?
-
- Here is one of mine:
-
- Why is L={www|wE{a,b}+} not contect free?
-
-
- Thank you for the information.
-
- Karl
-