extension; denotation; scope of a concept
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesnoun
extension (in logic); the set of objects to which a concept refers
formalIn formal logic and philosophy, a concept's extension is the collection of all things to which that concept applies, contrasted with its intension (内涵). For instance, the extension of "human" comprises all humans who have ever lived or will live.
"
Rén人
"
zhè这
gè个
gài概
niàn念
de的
wài外
yán延
bāo包
kuò括
gǔ古
jīn今
zhōng中
wài外
yī一
qiè切
de的
rén人
。
The extension of the concept "human" includes all people from ancient times to the present, from China and abroad.
Zài在
luó逻
jí辑
xué学
zhōng中
，
wài外
yán延
hé和
nèi内
hán涵
shì是
yán研
jiū究
gài概
niàn念
de的
liǎng两
gè个
jī基
běn本
fāng方
miàn面
。
In logic, extension and intension are the two fundamental aspects of studying concepts.
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Wǒ我
men们
xū需
yào要
xiān先
míng明
què确
zhè这
gè个
shù术
yǔ语
de的
wài外
yán延
，
cái才
néng能
jìn进
xíng行
xià下
yī一
bù步
tǎo讨
lùn论
。
We need to clarify the extension of this term before we can proceed to the next step of the discussion.
Guò过
yú于
kuān宽
fàn泛
de的
wài外
yán延
huì会
shǐ使
gài概
niàn念
shī失
qù去
jīng精
què确
xìng性
。
An overly broad extension will cause a concept to lose its precision.