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单词
over a set
释义
over a set
over a set
[
¦ō·vər ə ′set
]
(mathematics)
A map ƒ from a set
A
to a set
L
is said to be over a set
B
if
B
is a subset of both
A
and
L
and if the restriction of
F
to
B
is the identity map on
B
.
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更新时间:2025/4/1 21:35:31