 Deflationary-truth nominalism is the view that (a) as platonists and fictionalists maintain, ordinary mathematical sentences like ‘3 is prime’ should be read at face value, i.e., as being of the form ‘Fa’ and hence as making claims about mathematical objects, and (b) there are no such things as mathematical objects, but (c) our mathematical sentences are still true. Views of this kind have been endorsed by Azzouni (1994, 2004, 2010) and Bueno (2005, 2009). It should be noted, however, that Bueno—in his (2009)—calls his version of deflationary-truth nominalism a version of fictionalism. This isn’t because he really endorses the view that’s being called fictionalism in this essay; it’s because he uses the term ‘fictionalism’ differently from the way in which it’s being used in this essay. But it’s important to note that Bueno’s usage isn’t that different; for as we are about to see, deflationary-truth nominalism and fictionalism (as it’s being defined here) are fairly similar views. (Bueno’s view also differs from the fictionalist view defined here in a second way: he endorses agnosticism about abstract objects rather than full-blown anti-realism. But this difference is even less important than the first one; if we rephrased (b) and (c) in the above definition of fictionalism so that they were consistent with agnosticism, virtually nothing else about the fictionalist view would have to change. So fictionalists can choose whether they want to be agnostic or anti-realist about abstract objects, and this decision won’t have a very big impact on the rest of their view. Indeed, as will become clear in section 3, Bueno’s agnosticism might be more or less equivalent to the views of certain fictionalists.)