A proof based on divergent series

[mhill]

if we can proof an statement but we make use of a divergent series or integral to proof it.. would it be considered valid ??

for example using the theory of distributions or divergent series you can always prove the Riemann Functional equation.

 

[Hurkyl]

if we can proof an statement but we make use of a divergent series or integral to proof it.. would it be considered valid ??

If and only if you made use of the divergent series or integral in a logically correct manner.