Submitted by György Chityil ... on Fri, 01/19/2018 - 22:23 Hierarchy: NounDescription: {{logic}} One of a set of rules ("'''formation rules'''") used to construct well-formed formulas of a formal language.Ngram: formation ruleNgram Text: formation ruleSource: WiktionaryIssue: 0Wiktionary tag: logicNgram Count: 2