Terminological inexactitude Terminological inexactitude Terminological inexactitude is a phrase introduced in 1906 by British politician Winston Churchill. Today, it is used as a euphemism or circumlocution meaning a lie or untruth. Churchill first used the phrase following the 1906 election. Speaking in the House of Commons on 22 February 1906 as Under-Secretary of the Colonial Office, he had occasion to repeat what he had said during the campaign. When asked that day whether the Government was condoning slavery of Chinese labourers in the Transvaal, Churchill replied: It has been used as a euphemism for a lie in the House of Commons, as
Representation of a Lie group zeroth homotopy group of . For example, in the case of the four-component Lorentz group, representatives of space inversion and time reversal must be put in by hand. Further illustrations will be drawn from the representation theory of the Lorentz group below. If formula_8 is a Lie group with Lie algebra formula_101, then we have the exponential map from formula_101 to formula_8, written as If formula_8 is a matrix Lie group, the expression formula_110 can be computed by the usual power series for the exponential. In any Lie group, there exist neighborhoods formula_111 of the identity in formula_8 and formula_5