Terminological inexactitude to accuse another member of lying is considered unparliamentary. In more recent times, the term was used by Conservative MP Jacob Rees-Mogg to the Leader of the Oppositon, Jeremy Corbyn over an accusation that Rees-Mogg's company had moved a hedge fund into the Eurozone despite him being in favour of Brexit. 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
Nilradical of a Lie algebra Nilradical of a Lie algebra In algebra, the nilradical of a Lie algebra is a nilpotent ideal, which is as large as possible. The nilradical formula_1 of a finite-dimensional Lie algebra formula_2 is its maximal nilpotent ideal, which exists because the sum of any two nilpotent ideals is nilpotent. It is an ideal in the radical formula_3 of the Lie algebra formula_2. The quotient of a Lie algebra by its nilradical is a reductive Lie algebra formula_5. However, the corresponding short exact sequence does not split in general (i.e., there isn't always a "subalgebra" complementary to formula_1 in formula_2). This