Introduction This is an expository work,* in which we shall treat some questions related to the
theory of inconsistent formal systems. The exposition will be neither rigorous nor complete. …

… / by Newton CA da Costa and Steven French. p. … da Costa and French (1993a), whereas
aspects of chapter 5 can be found scattered through a variety of publications, including da Costa …

… But we should realize that other forms of logic may 796 Newton CA da Costa, Decio Krause
and Otavio Bueno help us understand certain features of these domains, which are not …

In this paper we present a two-valued semantics for C1? which constitutes a generalization
of the common semantics of the classical propositional calculus. It seems to us that the …

… (da Costa 1987b; da Costa and French 1989). Thus the whole edifice-pragmatic truth,
pragmatic probability and a pragmatic logic of induction-has a pleasing consistency and intuitive …

… in da Costa and Doria (1990a); we also quote as related work our papers (da Costa and
Doria, 1990b, 1991 ; da Costa et al., 1990). The concepts we require are described below. …

… logic (see Jaskowski (1969) and da Costa (1975)).We will study these connections in the
context of da Costa’s formulation of pragmatic structures (cf. da Costa (1986)), which we shall …

The overreaction hypothesis on a new set of data for the Brazilian stock market over the
period 1970–1989 is investigated. Both market adjusted returns and the standard Sharpe-…

… ), it is to one of the authors of this paper (Newton da Costa) that is generally credited the
origins of … The rst published work of da Costa presenting a system of paraconsistent logic …

… When Newton's mechanics was superseded by relativity theory, most physicists said that
although Newton's theory was, strictly speaking, false, in any case it was a good approximation …