[texhax] Need obscure combination.

[bil at beeb.net]

I need to create a 'combination' symbol in math mode, basically a right arrow
with a \cong symbol over it. The arrow should be on the 'normal'
level. I've tried {\cong\over\rightarrow} but that puts a horizontal
line between and pushes the arrow down. Can anyone better versed in TeX/LaTeX
come up with an appropriate recipe?

Ideally, the \cong symbol should be somewhat smaller than the arrow

Bill
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| Bill Purvis, Amateur Mathematician    |
|  email: bil at beeb.net                  |
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