Request for new topic of instruction

Shadow · **Posted:** Fri, 7 Sep 2007 04:05:05 UTC

Perhaps with some of the set theory stuff, like unions intersections and the like, that would be most useful.

Shadow · **Posted:** Fri, 21 Sep 2007 16:58:09 UTC

And the null set, that was a pain to figure out. Just set theory in general I think would be nice.

qleak · **Posted:** Fri, 21 Sep 2007 18:09:43 UTC

$\cap$ =\cap $\bigcap$ =\bigcap

$\cup$ =\cup $\bigcup$ =\bigcup

$\subseteq$ =\subseteq

$\subset$ =\subset

$\subsetneq$ =\subsetneq

$\emptyset$ =\emptyset

$\{$ = \{ or \left\{

$\}$ = \} or \right\}

Zone Ranger · **Posted:** Fri, 21 Sep 2007 19:01:17 UTC

$\subseteqq$ =\subseteqq

$\supseteqq$ =\supseteqq

$\subsetneqq$ =\subsetneqq

$\supsetneqq$ =\supsetneqq

Shadow · **Posted:** Fri, 21 Sep 2007 22:25:36 UTC

Thanks gents.

Soroban · **Posted:** Mon, 24 Sep 2007 13:35:52 UTC

$\begin{array}{ccc}\in & & \backslash \text{in} \\ \\ \overline{A \cap B} & & \backslash\text{overline}\{A\text{ cap }B\} \\ \\ \sim A & & \backslash\text{sim }A\end{array}$

I use \sim\!\!A to remove that space: . $\sim\!\!A$

. . $\text{I also use that trick for }\sin^2x\!:$ . \sin^2\!x . . $\Rightarrow\quad \sin^2\!x$

S.O.S. Mathematics CyberBoard

Request for new topic of instruction

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