University of Minnesota Digital Conservancy (University of Minnesota) · 1978 · 17 citations · 1 references
HumanitiesPhilosophyLogicPhilosophy Of LanguageSemanticsModal SemanticsPredicate LogicTruth-conditional SemanticsConservative ExtensionsDisposition ValuationExtension ClausesExtension Condition
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A NOTE ON NATURAL LAWS AND SO-CALLED “CONTRARY-TO-FACT CONDITIONALS”
Karl R. Popper · Mind · 1949 · 19 citations