User:Furryoats

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$\ds {1 + \sum_{n \mathop = 0}^\infty \dfrac {\map P {\map C n} } {n!} } - \paren {\phi + \frac 1 7} = .0038775357789$

$\neg \paren {E \lor O} = 0$

$\phi = \dfrac {1 + \sqrt 5} 2$

$M_{i, j} \ds = \begin {cases} 1 & \text {if $i = j$} \\ x & \text {if $f(i) = j$} \\ 0 & \text {otherwise} \end {cases}$

$M_{i, j} \equiv M_k$