University of Cagliari
Defending Multiple Conclusions
24 March 2017, 12:00
Faculdade de Letras de Lisboa
Sala Mattos Romão (Departamento de Filosofia)
Abstract: Arguments are usually understood as having one or more premises and only one conclusion. A generalisation of this notion allows for several disjunctively connected conclusions. This is a contentious generalisation; I will argue that it is, nonetheless, justified. I set forth the thesis that multiple conclusions are epiphenomena of the logical connectives. Some connectives induce multiple-conclusion derivations. In this sense, such derivations are completely natural. Moreover, I argue that they can safely be used in the proof-theoretic semantics.