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ExpIntegralEi[1 + Log[x]]/E


Integrate[1/(1 + Log[x]), x] ==
ExpIntegralEi[1 + Log[x]]/E



              1
Integrate[----------, x] == 
          1 + Log[x]

ExpIntegralEi[1 + Log[x]]
-------------------------
            E

Time to compute: 0.02 second

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