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HallsofIvy
#10
Dec2-03, 06:22 AM
Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 39,353
Okay, you recognize that enx is NOT enex so that the a single application of the product rule does not work.

Yes, you can use the product rule repeatedly (in a proof by induction) but why?

What's wrong with using the chain rule as I suggested?