🌐EnglishEnglishBahasa IndonesiaFrançaisPolskiPortuguês한국어日本語EntityQ3077964· pop 7· linked from 23 articlesGreen's relationsAlso known as Green's equivalence relationsfive equivalence relations (H, L, R, D, J) defined on any semigroup or monoidAvailable in 7 languagesFrançaisBahasa IndonesiaHebrewPolskiUkrainian한국어via Wikidata sitelinks · CC0ConnectionsunitEntityJohn Mackintosh HowieEntityCategoriesSemigroup theory