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ps
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article
academic
G1T1
calculus
0-pre
2-common_logicsym
0-implies_and_iff
implies.md
implies.md
若$A$成立,则有$B$成立,就说$A$
蕴含
$B$,记为$A\implies B$
例如
数集$E$有界$\implies$$E$有上界