Haggis Agriculture stated that they were reviewing the ban on beef and lamb products, but that the ban on food containing sheep lung would remain in force. As haggis cannot be exported to the United States, it is instead made there, sometimes by Scottish companies. One such uses what is stated to be the same 150 year-old recipe and ingredients as in Scotland, except that sheep lung is not used, and the casing is always artificial. Haggis Haggis is a savoury pudding containing sheep's pluck (heart, liver, and lungs); minced with onion, oatmeal, suet, spices, and salt, mixed with stock, and
1/3–2/3 conjecture unsolved; call it "one of the most intriguing problems in the combinatorial theory of posets." A survey of the conjecture is given by . The 1/3–2/3 conjecture is known to be true for certain special classes of partial orders, including partial orders of width two, partial orders of height two, partial orders with at most 11 elements, partial orders in which each element is incomparable to at most six others, series-parallel partial orders, and semiorders. In the limit as "n" goes to infinity, the proportion of "n"-element partial orders that obey the 1/3–2/3 conjecture approaches 100%. proposed the following application