Larry Wall wrote: > On Tue, Apr 04, 2006 at 11:02:55AM -0700, Jonathan Lang wrote: > : Will perl6 Sets include set negation and/or a universal set? In > : effect, an internal flag that says, "this set contains every possible > : element _except_ the ones listed"? > > Arguably, that's what none() is.
...except that none() is a Junction, not a Set. As such, the same arguments that say that any() and all() aren't suitable for use as Sets apply to none(), don't they? -- Jonathan "Dataweaver" Lang