Re: A different definition of MINUS, Part 3

paul c wrote:
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search the formal definition at http://www.dcs.warwick.ac.uk/~hugh/TTM/APPXA.pdf}
and you will see that there is no mention of 'assignment' or 'principle.
...

They aren't mentioned anywhere, but the part that really matters is the FORMAL definitions which occupy a mere three pages, easy enough to memorize.

Some oldtimers will remember the "green card" which had nothing to do with US Immigration. I've often thought I'd prefer a green card portabilizing only those three pages (pages 12 through 14). They would be number-stamped and signed out to all database programmers. Losing one would be treated as the same offence as a soldier losing his rifle.


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