Re: A hierarchy of convergence tests?

Harry wrote:

On the 'ratio test' page on wikipedia it says:

"d'Alembert's ratio test and Raabe's test are the first and second
theorem in a hierarchy of such theorems due to Augustus De Morgan."

Does anybody know the full hierarchy, or have I misunderstood this?

In a (U.S.) college library, look in the vicinity of QA 295 Library
of Congress call numbers.

On the internet, look here:

http://books.google.com/books?as_vt=?infinite-series

Dave L. Renfro
.

Relevant Pages

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  • A hierarchy of convergence tests?
    ... On the 'ratio test' page on wikipedia it says: ... "d'Alembert's ratio test and Raabe's test are the first and second theorem in a hierarchy of such theorems due to Augustus De Morgan." ... Does anybody know the full hierarchy, ...
    (sci.math)