Turing completeness: Difference between revisions
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* Lambda calculus | * Lambda calculus | ||
* Minsky machine | * Minsky machine | ||
* Rule 110 | * Rule 110 automaton | ||
* Conway's game of life | * Conway's game of life | ||
* 2-Tag system | * 2-Tag system | ||
* Cyclic tag | * Cyclic tag | ||
* Tree rewrite system | * Tree rewrite system | ||
Revision as of 10:12, 17 December 2025
A Turing-complete system is a system that can compute every computable functions. A Turing-complete system can be used to simulate any Turing machine or other Turing-complete systems.
The halting problem is uncomputable on any Turing-complete system.
To be Turing-complete, a system must be able to store unbounded memory and having access to the memory. There must be also infinitely many different non-halting programs (like "while" loops or recursion).
List of Turing-complete systems
This list is non-exhaustive.
- Turing machine
- Lambda calculus
- Minsky machine
- Rule 110 automaton
- Conway's game of life
- 2-Tag system
- Cyclic tag
- Tree rewrite system