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These texts by Warner are quite remarkable in several aspects. I wish I had taken note of them much earlier.
On the dating we have to go by what the author chooses to declare as the end of the article’s gestation period.
The typewriter-script is indeed remarkable and somewhat puzzling, but the manuscripts contain remarks which were manifestly typed after 2000:
The abstract of his "Categorical Homotopy Theory" says that: "This book is an account of certain developments in categorical homotopy theory that have taken place since the year 2000." and the article cites, among others, Lurie 2009.
The introduction of his "Homotopy Topos Theory" contains an "editorial note" praising Cisinski’s thesis (from 2002).
The list of references in his "Mathematical Aspects of General Relativity" includes items dated up to 2005.
The list of references in his "Positivity" includes items dated up to 2007.
The list of references in his Lagrangian Mechanics includes items dated up to 2008.
The list of references in his "$C^\ast$-algebras" ends with a couple of citations of his other manuscripts with dates given as 2008 and 2010.
All this in 80s style typewriter font & resolution.
The typewriter-script is indeed remarkable and somewhat puzzling, but the manuscripts contain remarks which were manifestly typed after 2000
I would guess that in the 1970s-1980s Warner adopted nroff/troff for math typesetting and never advanced to LaTeX because the old was good enough for him and and doing so meant he wouldn’t be able to copy and paste from his large corpus of math source code (and maybe he went overboard writing a large collection of nroff macros).
In his book Sets and Classes: Operational Theory recently added to arXiv he thanks someone for translating his manuscript into LaTeX. He gives no indication of when that book was written and it is hard to look for the referenced work with the latest date because one of the book’s peculiarities is that all references appear as page footnotes and there is no reference list.
Interesting, that sounds like a possibility. Also, I see from online discussion that troff-to-pdf conversion is not immediate, so maybe what we are seeing are still scans of hard-copy printouts after all.
For what it’s worth, there is no citation in Sets and Classes dated after 1981 (as shown by search for the strings “198
” and “199
” and “20
”).
so maybe what we are seeing are still scans of hard-copy printouts after all
I opened up "$C^\ast$-algebras" in Adobe Acrobat and looked at the PDF properties (cntrl-d). It says
Creator: Xerox DocuMate 262
Producer: iLovePDF
CreationDate: Mon Nov 15 23:31:11 2010 CET
“Xerox DocuMate 262” is an OCR scanner.
// but how did it get scanned in CET (Central European Time)?
Since “ilovepdf.com” is an online pdf tool, I’d guess that CET is the server’s time zone. Which fits the time stamp 23:30 CET, corresponding to around noon in Washington state.
changed higher algebra - contents to algebra - contents in context sidebar
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