The validity of an inference depends on the form of the inference. That is, the word valid does not refer to the truth of the premises or the conclusion, but rather to the form of the inference. An inference can be valid even if the parts are false, and can be invalid even if some parts are true.
LONDON -- President Barack Obama and wife Michelle Obama were welcomed to Buckingham Palace in grand royal style Tuesday by Queen Elizabeth II as they began their official state visit to Britain, a rare honor for a U.S. president.bama's mission, in part, is to reassure Britain and the rest of Europe that the traditional U.S. allies still have a central role in a U.S. foreign policy that has become increasingly focused on Asia and other emerging markets.
Making the world better, one answer at a time. London is located in Europe. London is the capital of the United Kingdom, on islands off the coast of western Europe, which is itself part of the larger Eurasian continent.London, United Kingdom part of the European Continent.ondon, England, is on the continent of Europe, even though the  British Isles are separated from the mainland by the English  Channel.   London, Canada, is on the conti â¦ nent of North America.