(NLR 146), Fredric Jameson argues that pastiche, rather than parody, is the appropriate mode of postmodernist culture. ‘Pastiche’, he writes, ‘is, like parody, the imitation of a peculiar mask, speech in a dead language; but it is a neutral practice of such mimicry, without any of parody’s ulterior motives, amputated of the satiric impulse, devoid of laughter and of any conviction that alongsid...

The notion of vague ideals in pseudo MV-algebras is introduced,and several properties are investigated. Conditions for a vague set to be avague ideal are provided. Conditions for a vague ideal to be implicative aregiven. Characterizations of (implicative, prime) vague ideals are discussed.The smallest vague ideal containing a given vague set is established. Primeand implicative extension proper...

In the late 1980s, Graeme Segal axiomatized conformal field theory in terms of a cobordism category. In that same preprint he outlined a more symmetric trace approach, which was recently rigorized in terms of pseudo algebras over a 2-theory. In this paper, we treat the cobordism approach in the pseudo algebra context. We introduce a new algebraic structure on a bicategory, called a pseudo 2-alg...