منابع مشابه
Modus Tollens Probabilized
We establish a probabilized version of modus tollens, deriving from p(E jH)1⁄4 a and p( E)1⁄4 b the best possible bounds on p( H). In particular, we show that p( H)! 1 as a, b ! 1, and also as a, b ! 0.
متن کاملA Counterexample to Modus Tollens
This paper defends a counterexample to Modus Tollens, and uses it to draw some conclusions about the logic and semantics of indicative conditionals and probability operators in natural language. Along the way we investigate some of the interactions of these expressions with knows, and we call into question the thesis that all knowledge ascriptions have truthconditions. A probabilistic dynamic s...
متن کاملGeneralized Modus Tollens with Linguistic Modifiers for Inverse Approximate Reasoning
Based on our previous researchs about generalized modus ponens (GMP) with linguistic modifiers for If ... Then rules, this paper proposes new generalized modus tollens (GMT) inference rules with linguistic modifiers in linguistic many–valued logic framework with using hedge moving rules for inverse approximate reasoning.
متن کاملHow to Embed Epistemic Modals without Violating Modus Tollens
Epistemic modals in consequent place of indicative conditionals give rise to apparent counterexamples to Modus Ponens and Modus Tollens. Familiar assumptions of familiar truth conditional theories of modality facilitate a prima facie explanation—viz., that the target cases harbor epistemic modal equivocations. However, these explanations go too far. For they foster other predictions of equivoca...
متن کاملOn the joint verification of Modus Ponens and Modus Tollens in fuzzy logic
This paper deals with the joint verification of the inequalities of Modus Ponens and Modus Tollens in Fuzzy Logic. Although the case of Modus Ponens was partially considered before, the case of Modus Tollens and the joint satisfaction of both inequalities are studied by the first time. The cases of R-implications, Simplications, Q-implications and MamdaniLarsen implications are separatedly cons...
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ژورنال
عنوان ژورنال: Notre Dame Journal of Formal Logic
سال: 1979
ISSN: 0029-4527
DOI: 10.1305/ndjfl/1093882408