Optimal. Leaf size=7 \[ \text{CannotIntegrate}(\log (\log (\log (\log (x)))),x) \]
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Rubi [A] time = 0.0058479, antiderivative size = 0, normalized size of antiderivative = 0., number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0., Rules used = {} \[ \int \log (\log (\log (\log (x)))) \, dx \]
Verification is Not applicable to the result.
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Rubi steps
\begin{align*} \int \log (\log (\log (\log (x)))) \, dx &=\int \log (\log (\log (\log (x)))) \, dx\\ \end{align*}
Mathematica [A] time = 0.0363875, size = 0, normalized size = 0. \[ \int \log (\log (\log (\log (x)))) \, dx \]
Verification is Not applicable to the result.
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Maple [A] time = 0.014, size = 0, normalized size = 0. \begin{align*} \int \ln \left ( \ln \left ( \ln \left ( \ln \left ( x \right ) \right ) \right ) \right ) \, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0., size = 0, normalized size = 0. \begin{align*} x \log \left (\log \left (\log \left (\log \left (x\right )\right )\right )\right ) - \int \frac{1}{\log \left (x\right ) \log \left (\log \left (x\right )\right ) \log \left (\log \left (\log \left (x\right )\right )\right )}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\log \left (\log \left (\log \left (\log \left (x\right )\right )\right )\right ), x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0., size = 0, normalized size = 0. \begin{align*} x \log{\left (\log{\left (\log{\left (\log{\left (x \right )} \right )} \right )} \right )} - \int \frac{1}{\log{\left (x \right )} \log{\left (\log{\left (x \right )} \right )} \log{\left (\log{\left (\log{\left (x \right )} \right )} \right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 0., size = 0, normalized size = 0. \begin{align*} \int \log \left (\log \left (\log \left (\log \left (x\right )\right )\right )\right )\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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