KnowraMagmaLinked fromLinked fromThe 3 pages that link to Magma, each with the reason it gives.All 3Narrower topic 2Compared with 1SemigroupNarrower topic: A semigroup is a magma whose operation also satisfies associativity.Inverse elementNarrower topic: This is the minimal algebraic setting in which the inverse question can be posed.Algebraic structureCompared with: It provides the minimal starting point against which stronger algebraic axioms stand out.