Icelandic

Noun

hálfgrúpa f ‎(genitive singular hálfgrúpu, nominative plural hálfgrúpur)

1. (mathematics) a semigroup; (any set for which there is a binary operation that is both closed and associative)

Declension

Derived terms

• styttin hálfgrúpa ‎(“cancellation semigroup”)
• hálfgrúpumótun ‎(“semigroup homomorphism”)
• hálfgrúpa með hlutleysu ‎(“semigroup with identity element, monoid”)