Add 'subsequences' and 'permutations' to Data.List (ticket #1990)

Yitzchak Gale gale at
Sat Dec 22 13:34:23 EST 2007

> So when we subtract out the control, satisfying the consistency
> property increases run time by at least a factor of 4.

Oops, a factor of 3. But anyway, same point.

> The property is nice, but is it worth that penalty?
> I'm not sure, I'd be interested in hearing other people's
> opinions.


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