groupoid

名词 n.
中文释义

英文释义

名词 n.
  1. A magma: a set with a total binary operation.
  2. A set with a partial binary operation that is associative and has identities and inverses.
    — [...] A category in which every morphism is an isomorphism is called a groupoid. This means that a group is a groupoid with only one object. [...]

词形变化

groupoids plural

词汇关系

衍生词
groupoidal hypergroupoid Lie groupoid loopoid pregroupoid subgroupoid zroupoid

词源

Etymology tree
Proto-Indo-European *grewbʰ-der.
Proto-Germanic *kruppazder.
Frankish *kruppbor.
Vulgar Latin *cruppus
Italian gruppobor.
French groupebor.
▲
Italian gruppobor.
English group
Ancient Greek -ο- (-o-)der.
Latin -o-
Proto-Indo-European *weyd-
Proto-Indo-European *-os
Proto-Indo-European *wéydos
Proto-Hellenic *wéidos
Ancient Greek εἶδος (eîdos)
Proto-Indo-European *-os
Proto-Indo-European *-ēs
Ancient Greek -ης (-ēs)
Ancient Greek -ειδής (-eidḗs)
Latin -oīdēslbor.
English -oid
English groupoid
From group + -oid.
0 次浏览 数据来源: Wiktionary