 For example, beginning with Strawson and the work cited above, we have numerous writers arguing that the existence claim is presupposed. The idea that uniqueness is presupposed is suggested in work by Heim (1991), von Fintel (2004), Elbourne (2005, 2013), Rothschild (2007), and Schoubye (2013). It is possible to understand Cooper (1983), Heim (1983), Chemla (2009), Schlenker (2008, 2009) and Romoli (2015) as holding that the maximality component is presupposed. Combinations are possible. The idea that both the existence claim and the uniqueness claim is presupposed can be attributed to Abbott (2008), Hawthorne and Manley (2012) and Schoubye (2013), among others.  For a detailed defense of the Strawsonian position, see Elbourne (2013).