“Is / ought”的意思、由来-开放百科全书

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词条	Is / ought
释义	SeeIs–ought problem
随便看	Treaty of Vienna (1606) Treaty of Vienna (1731) Treaty of Vienna (1738) Treaty of Vienna (1809) Treaty of Vienna (1864) Treaty of Vienna, 1864 Treaty of Vienna (1866) Treaty of Vienna (1955) Treaty of Villafranca Treaty of Viterbo Treaty of Várad Treaty of Värälä Treaty of Waitangi Act 1975 Treaty of Waitangi claims and settlements Treaty of Waitangi Grievance Industry Treaty of Waitangi settlements and claims Treaty of Wallingford Treaty of Wanghia Treaty of wanghia Treaty of Wangsia Treaty of Wangxia Treaty of Wapakoneta Treaty of Warsaw Treaty of Warsaw (1920) Treaty of Watauga