hi there, I have trouble getting started with proving that: abs ( sum over all a ) <= sum over all abs ( a ) any suggestions (induction proof) would be very welcome. thank you - oz.
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Originally Posted by ozfingwe hi there, I have trouble getting started with proving that: abs ( sum over all a ) <= sum over all abs ( a ) any suggestions (induction proof) would be very welcome. thank you - oz. Exactly: induction (provided "over all a" means "over all the possible finite values some variable/parameter a can attain"). Tonio
Originally Posted by ozfingwe hi there, I have trouble getting started with proving that: abs ( sum over all a ) <= sum over all abs ( a ) any suggestions (induction proof) would be very welcome. thank you - oz. This is just the triangle inequality.
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