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Hierarchical logical consequence
2010
Logic Journal of the IGPL
The modern view of logical reasoning as modeled by a consequence operator (instead of simply by a set of theorems) has allowed for huge developments in the study of logic as an abstract discipline. Still, it is unable to explain why it is often the case that the same designation is used, in an ambiguous way, to describe several distinct modes of reasoning over the same logical language. A paradigmatic example of such a situation is 'modal logic', a designation which can encompass reasoning over
doi:10.1093/jigpal/jzp093
fatcat:s6q57ex36vft5hnxrakpqwc3ty