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Much Greater

A strong Inequality in which $a$ is not only Greater than $b$, but much greater (by some convention), is denoted $a\gg b$. For an astronomer, ``much'' may mean by a factor of 100 (or even 10), while for a mathematician, it might mean by a factor of $10^4$ (or even much more).

See also Greater, Much Less

© 1996-9 Eric W. Weisstein