# The Fundamental Physics Project Rule Syntax.

Posted 1 year ago
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 Hello again everyone, hope you are all well.In reading over my last posted question, I realize I may have included too much information, and/or completely botched the subject line of the post, so please allow me to rephrase the question.In the Wolfram Fundamental Physics Project Update Rule:{{X,X,Y},{X,Z,V}} -> {{V,V,W},{W,V,Y},{Z,Y,W}}can anyone, anywhere, explain exactly what the left-hand side is supposed to mean, in English?
 Hi David,do you mean that specific case ({{X,X,Y},{X,Z,V}} -> {{V,V,W},{W,V,Y},{Z,Y,W}}) or a rule in general? Have you taken a look at this book, where most of the subject is explained in details: https://www.wolframphysics.org/technical-introduction/basic-form-of-models/first-example-of-a-rule/Then to see, how that particular rule works in Wolfram Models, you can run the next code snippets in your Wolfram App: rule={{X,X,Y},{X,Z,V}} -> {{V,V,W},{W,V,Y},{Z,Y,W}}; RulePlot[rule] And: Dataset[{ResourceFunction["WolframModelPlot"][#], ToString@#} &/@ResourceFunction["WolframModel"][rule,Automatic, 10, "StatesList"]] Experiment more with the help of the documentation: https://resources.wolframcloud.com/FunctionRepository/resources/WolframModelAnd tell us what did you learn.All the best, -Marko