Strict conditional: Difference between revisions

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: <math>\Box</math> (Bill Gates graduated in Medicine → Elvis never died.)
 
In modal logic, this formula means (roughly) that, in every possible world in which Bill Gates graduated in Medicine, Elvis never died. Since one can easily imagine a world where Bill Gates is a Medicine graduate and Elvis is dead, this formula is false. Hence, this formula seems to be a correct translation of the original sentence.
 
==Problems==