Hasse diagrams are named after Helmut Hasse (1898–1979); according to Garrett Birkhoff (1948), they are so called because of the effective use Hasse made of them.
哈斯圖得名於Helmut Hasse（1898年–1979年）；依據Birkhoff (1948)，這麼叫是因為Hasse有效的利用了它們。