Abstract
In this paper we introduce a system S5U, formed by adding to the modal system S5 a new connective U, Up being read “probably”. A few theorems are derived in S5U, and the system is provided with a decision procedure. Several decidable extensions of S5U are discussed, and probability logic is related to plurality quantification.
Publisher
Cambridge University Press (CUP)
Reference5 articles.
1. VIII.—THE MODAL ”PROBABLY“
2. Plurality quantification;Rescher;this Journal,1962
Cited by
17 articles.
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