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# Differences

This shows you the differences between two versions of the page.

-for all $c$ and $a$.+for all $c$ and $a$ (intuitively,​ the condition means that $c$ is approximated by $a$).
**2.** Show that the condition $(*)$ is equivalent to the conjunction of these two conditions: **2.** Show that the condition $(*)$ is equivalent to the conjunction of these two conditions: