最終更新日：2025/12/04
(category theory) Given a category C, any object X ∈ C on which morphisms are defined corresponding to the group theoretic concepts of a binary operation (called multiplication), identity and inverse, such that multiplication is associative and properties are satisfied that correspond to the existence of inverse elements and the identity element.
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group object
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元となった辞書の項目
group object
名詞
(category
theory)
Given
a
category
C,
any
object
X
∈
C
on
which
morphisms
are
defined
corresponding
to
the
group
theoretic
concepts
of
a
binary
operation
(called
multiplication),
identity
and
inverse,
such
that
multiplication
is
associative
and
properties
are
satisfied
that
correspond
to
the
existence
of
inverse
elements
and
the
identity
element.
日本語の意味
圏論において、与えられた圏Cの中の対象Xで、群論における二項演算（掛け算）、単位元、逆元に対応する射が定義され、これらの射が結合性や逆元、単位元の存在に対応する性質を満たすような対象を指す。
意味（1）
(category
theory)
Given
a
category
C,
any
object
X
∈
C
on
which
morphisms
are
defined
corresponding
to
the
group
theoretic
concepts
of
a
binary
operation
(called
multiplication),
identity
and
inverse,
such
that
multiplication
is
associative
and
properties
are
satisfied
that
correspond
to
the
existence
of
inverse
elements
and
the
identity
element.
（ plural ）
