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Full Idea
It may be possible to eliminate the modal operators (in English, 'is possible' and 'is necessary') in favour of quantifier expressions with variables ranging over possible worlds.
Clarification
'Quantification' just asserts existence
Gist of Idea
We might eliminate 'possible' and 'necessary' in favour of quantification over possible worlds
Source
E.J. Lowe (A Survey of Metaphysics [2002], p.121)
Book Ref
Lowe,E.J.: 'A Survey of Metaphysics' [OUP 2002], p.121
A Reaction
Hence 'necessary' becomes 'exists/is true in all possible worlds'. Deep problems, but at least we must show that referring to 'possible' worlds isn't a circular explanation of 'is possible'.