MyWikiBiz, Author Your Legacy — Saturday November 29, 2025
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, 16:04, 14 March 2010
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| − | ====Majority function==== | + | ====Majority function example==== |
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| − | Here's a nice example that was posted as a [http://mathoverflow.net/questions/9292/newbie-boolean-algebra-question question at MathOverFlow].
| + | A reader posed a [http://mathoverflow.net/questions/9292/newbie-boolean-algebra-question question] at [http://mathoverflow.net/ MathOverFlow] asking for a proof of the following equation in boolean algebra: |
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| | + | {| align="center" cellpadding="10" |
| | + | | |
| | + | <math>\begin{matrix} |
| | + | a b \bar{c} + a \bar{b} c + \bar{a} b c + a b c |
| | + | \\[6pt] |
| | + | \iff |
| | + | \\[6pt] |
| | + | a b + a c + b c |
| | + | \end{matrix}</math> |
| | + | |} |
| | + | |
| | + | =====Proof 1 : Storyboard===== |
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| | {| align="center" cellpadding="0" cellspacing="0" style="border-left:1px solid black; border-top:1px solid black; border-right:1px solid black; border-bottom:1px solid black; text-align:center" | | {| align="center" cellpadding="0" cellspacing="0" style="border-left:1px solid black; border-top:1px solid black; border-right:1px solid black; border-bottom:1px solid black; text-align:center" |
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| | |} | | |} |
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| − | <br>
| + | =====Proof 1 : Animation===== |
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| | Here's a rough animation of the graphical transformations in the above proof: | | Here's a rough animation of the graphical transformations in the above proof: |