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One learns to post in symbols! You can use LaTeX tags. [tex] \neg \vee \wedge \Rightarrow \equiv \forall \exists [/tex] gives $\displaystyle \neg \vee \wedge \Rightarrow \equiv \forall \exists $.
You can download LaTex for free. Here is a link to instructions on how to install LyX LyX This is also a great help in writing articles and papers for class.
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