Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
436794 | Theoretical Computer Science | 2013 | 11 Pages |
Abstract
Horčík and Terui [8] show that, if a substructural logic enjoys the disjunction property, then its tautology problem is PSPACE-hard. We prove that all substructural logics in the interval between intuitionistic logic and generalized Hájek basic logic have a PSPACE-hard tautology problem, which implies that uncountably many substructural logics lacking the disjunction property have a PSPACE-hard tautology problem.
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