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$1$ : It means "there exists something"

$0$ : It doesnt mean "there exists nothing", instead it means "there exist something but that is nothing"


33
× 70
9
× 57
26
× 37
9
× 4
13
× 29
8
× 5
11
× 13
7
× 25
11
× 7
7
× 6
Mathematics 2,999 rep 1418
Mathematica 322 rep 29
MathOverflow 190 rep 7
Cross Validated 137 rep 1
Signal Processing 116 rep 2

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