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a type of formal logic primarily developed in the 1960s that extends classical propositional and predicate logic to include operators expressing modality
2
votes
1
answer
103
views
introduction to modal logic
I am not entirely sure if we are allowed to ask such questions here but I was wondering if anyone could suggest me a real introductory level textbook on modal logic
2
votes
2
answers
178
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circularity of possibility defined over possible worlds
I have just checked similar questions that have been asked(and answered) before but I am still confused. How is it that the notion of possibility defined over as being True in some possible world not …
3
votes
1
answer
733
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The difference between indicative conditional and counterfactual
I was confused about the difference between indicative conditionals and counterfactuals. Could someone please offer an elaboration?