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$\begingroup$ I'm hesitant to agree as DNE is not the same as 0... $\endgroup$

FishDrowned
– FishDrowned

2025-03-31 23:07:49 +00:00
Commented Mar 31 at 23:07
1

$\begingroup$ I am saying the derangements do not exist with one object, in which case their number is zero. $\endgroup$

Oscar Lanzi
– Oscar Lanzi

2025-03-31 23:12:14 +00:00
Commented Mar 31 at 23:12

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