Metarule definitions

Metarule

1) Formula 2) Rule
Found on https://www.crosswordclues.com/clue/metarule

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metarule

[n] - a rule that describes how other rules should be used (as in AI)
Found on http://www.webdictionary.co.uk/definition.php?query=metarule

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metarule

noun a rule that describes how other rules should be used (as in AI)
Found on https://www.encyclo.co.uk/local/20974

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