Jon,
I'm glad that you found Dunn's semantics for modal logic useful. But
where did you find any MSS about Delta graphs?
John
t
_ _ _ _ _ _ _ _ _ _
► PEIRCE-L subscribers: Click on "Reply List" or "Reply All" to REPLY ON
PEIR
List:
My previous post discussed a version of possible worlds semantics for modal
logic originally developed by Dunn and Goble, and later summarized by Sowa.
Dunn refers to laws and facts, but his corresponding sets contain
truth-functional valuations rather than propositions themselves, and he
ma
