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2002-09-11* pp.rb (ARGF.pretty_print): implemented.akr
2002-09-07Use Enumerable#all? to optimize a bit.knu
2002-09-07* lib/set.rb: Disallow Set.new(false). Add even more tests.knu
2002-09-07* lib/set.rb: Fix a bug in flatten()'s recursive set detection.knu
2002-09-04- ==(o) should be aware of all the Set variant instances, not justknu
2002-08-30Add set.rb.knu