# The Variant-Rule Another Logically Universal Rule

@article{Soto2020TheVA, title={The Variant-Rule Another Logically Universal Rule}, author={Jos{\'e} Manuel G{\'o}mez Soto and Andrew Wuensche}, journal={J. Cell. Autom.}, year={2020}, volume={15}, pages={147-173} }

The Variant-rule derives from the Precursor-rule by interchanging two classes of its 28 isotropic mappings. Although this small mutation conserves most glider types and stable blocks, glider-gun engines are changed, as are most large scale pattern behaviors, illustrating both the robustness and fragility of evolution. We demonstrate these newly discovered structures and dynamics, and utilising two different glider types, build the logical gates required for universality in the logical sence.

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## One Citation

Isotropic Cellular Automata: the DDLab iso-rule Paradigm

- Computer ScienceJ. Cell. Autom.
- 2021

A novel paradigm, the iso-rule, a concise expression for isotropic CA by the output table for each isotropics neighborhood group is presented, allowing an efficient method of navigating and exploring iso- rule-space.

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