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.
Serene: The chief reception room of the Belgian Suite on the ground floor of the front garden where President Obama and his wife Michelle will reside during their State visit.These visits are an integral part of the Royal year, with each guest being treated in an identical fashion as to the protocol and accommodation.very year since she came to the throne in 1952, the Queen has invited two heads of State to stay at either Buckingham Palace or Windsor Castle.