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Chapter 11 Notes > Section 12 Previous section-----Next section
Notes for

Chapter 11: The Notion of Computation
Section 12: Universality in Turing Machines and Other Systems


* Minsky's [universal] Turing machine

*History [of universal Turing machines]

* Rule 110 Turing machines

*Rule 60 Turing machines

*Turing machine enumeration

*States versus colors [in Turing machines]

*s=2, k=2 Turing machines

*[Turing] machine 596440

*s=3, k=2 Turing machines

*[Universal] tag systems

*[Methods of] encoding sequences by integers

*[Universal] register machines

*[Universal] recursive functions

*Lambda calculus

*Combinators

*Combinator properties

*Single [universal] combinators

* Cellular automaton combinators

*Testing universality [in symbolic systems]

*Criteria for universality

*[Universality for] classes of systems



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From Stephen Wolfram: A New Kind of Science [citation] Previous section-----Next section