What went wrong in the algebraic steps for ln rules?

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The discussion centers on the algebraic manipulation of logarithmic identities, specifically the incorrect application of the natural logarithm properties. The equation ln(ab) = b⋅ln(a) is misapplied when assuming ln(2x) = ln(1x), leading to the erroneous conclusion that ln(2) = ln(1). The critical error occurs when dividing both sides by x, particularly when x equals zero, which invalidates the operation. The conclusion emphasizes the importance of recognizing the conditions under which logarithmic identities hold true.

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AnotherParadox
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Given

ln(ab) = b⋅ln(a)

Then

ln(1x) = x⋅ln(1)

Also

ln(2x) = x⋅ln(2)

Say

ln(2x) = ln(1x)

Then Also

x⋅ln(2) = x⋅ln(1)

But, dividing both sides by x

ln(2) ≠ ln(1)

Similarly,

x⋅ln(2) = x⋅ln(1)

Dividing both sides by x and ln(2)

1 ≠ 0

But we know x = 0 as per the original statement.

The question then is which algebraic step(s) was(were) wrong, and why?
 
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AnotherParadox said:
Say

##ln(2^x) = ln(1^x)##

this is not true if ##x\not= 0## and, if ##x=0## you can not divide by ##x## here:

AnotherParadox said:
Then Also

##x⋅ln(2) = x⋅ln(1)##

Ssnow
 
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