[texhax] Obsolete \centerline command used in amsbook class (Uwe L?ck)

[Michael Barr]

Well, I admit that I had confused amstex with amslatex.  I was talking of 
course of the latter.

I certainly agree that redefining \newcommand is shoddy and I would never 
do that.  But undefining a tex (not plaintex, but actual tex) primitive 
such as \over is inexcusable.  As for the use of \def, well if there were 
a procedure that had all the funcionality of \def and just gave a warning 
instead of stopping on error when you had redefined something, I would 
gladly use it.  I cannot imagine any other reason for deprecating \def 
than that you might inadvertently redefine something that you didn't 
realize.

Michael

-- 
The modern conservative is engaged in one of man's oldest exercises in
moral philosophy--the search for a superior moral justification
for selfishness.  --J.K. Galbraith