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Modal algebra

In algebra and logic, a modal algebra is a structure such that * is a Boolean algebra, * is a unary operation on A satisfying and for all x, y in A… 
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Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2013
2013
Modal semirings are combined with modal algebra (Boolean algebra with operators) to form modal semirings with operators. In turn… 
2011
2011
We introduce modal de Vries algebras and develop a duality between the category of modal de Vries algebras and the category of… 
1999
1999
The duality between general frames and modal algebras allows to transfer a problem about the relational (Kripke) semantics into… 
1999
1999
We consider the families L of propositional superintuitionistic logics (s.i.l.) andNE(K) of normal modal logics (n.m.l.). It is… 
1998
1998
C. I. Lewis repeatedly exempts MacColl from criticisms of his predecessors in their accounts of implication. They had all taken a… 
1997
1997
Generalising Boolean-valued predicates to expectations | functions from the state space into 0; 1] | allows the deenition of… 
1995
1995
In this paper the structure of pretemporal algebra is used to study some aspects of temporal algebras and modal algebras. The… 
1993
1993
'Different folk hold different views' of the same things. Modal logicians and modal logics are not exceptions. Some consider… 
1984
1984
We prove that a finite tetravalent modal algebra is determined, up to an isomorphism, by its determinant system, applying the…