2020
DOI: 10.1007/978-981-15-7134-3_11
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Strengthened Conditionals

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Cited by 6 publications
(18 citation statements)
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“…For (ii), one has to consider Definition 6.2.8(b), according to which for every v such that Priest's notion of validity is easily seen to be equivalent to that for the S5-based logic of super strict implication (analogously to what happens in standard modal logics, an accessibility relation that is an equivalence relation is equivalent to a universal accessibility relation). Formally we have the following result: We find this result interesting since it entails that the logics of SSI are connexive logics having the same set of S5-validities of Priest's one, that are obtained without having to tamper with the Tarskian notion of consequence relation nor with the classical explosion model of negation [19]. Moreover, this entails that in Section 4 we have introduced a cut-free sequent calculus that characterizes validity in Priest's formal semantics.…”
Section: Soundnessmentioning
confidence: 85%
See 1 more Smart Citation
“…For (ii), one has to consider Definition 6.2.8(b), according to which for every v such that Priest's notion of validity is easily seen to be equivalent to that for the S5-based logic of super strict implication (analogously to what happens in standard modal logics, an accessibility relation that is an equivalence relation is equivalent to a universal accessibility relation). Formally we have the following result: We find this result interesting since it entails that the logics of SSI are connexive logics having the same set of S5-validities of Priest's one, that are obtained without having to tamper with the Tarskian notion of consequence relation nor with the classical explosion model of negation [19]. Moreover, this entails that in Section 4 we have introduced a cut-free sequent calculus that characterizes validity in Priest's formal semantics.…”
Section: Soundnessmentioning
confidence: 85%
“…Finally, another formal semantics for a connexive logic that is very similar to the one for SSI is the one adopted by G. Priest [16] to model the cancellation account of negation [19]. Section 7 will compare our proposal with Priest's one.…”
Section: Super-strict Implications and Related Workmentioning
confidence: 99%
“…The remaining two axioms CT and CSS, instead, express principles that do not hold in VC. 10 CT expresses the intuition illustrated in Section 1 that a concessive conditional implies its consequent. This axiom replaces MI, but it is stronger than MI: if β holds, then α ⊃ β holds, but not the other way round.…”
Section: The System CCmentioning
confidence: 83%
“…WDW is derivable from RW, but the reverse is not true. 8 Similarly TI is a weak replacement of CS, in that it is derivable from CS, but for the converse we need CM. This is why CS is not derivable in CC.…”
Section: The System CCmentioning
confidence: 99%
“…If we want to stay within the language L ⊲ then labelled calculi for these logics can be given by a mixture of the calculi in [6] with those in [21]. A characterisation in terms of axiomatic systems can be given by exploiting the techniques used in [18]. We believe this latter problem to be of particular interest given the results of Lemma 6, but we leave it for future research.…”
Section: Discussionmentioning
confidence: 99%