This paper explores the role of some basic notions in the study of non-monotonic reasoning, such as validity, logical consequence, context, rules and assumptions.1 It offers some ...
This paper introduces a logical system, called BV , which extends multiplicative linear logic by a non-commutative self-dual logical operator. This extension is particularly challe...
Access control rules are currently administered by highly qualified personnel. Thus, the technical barrier that specialized access control languages represent naturally prevents th...
We present constructive arithmetic in Deduction modulo with rewrite rules only. In natural deduction and in sequent calculus, the cut elimination theorem and the analysis of the st...
Basic proof search tactics in logic and type theory can be seen as the root-rst applications of rules in an appropriate sequent calculus, preferably without the redundancies gener...