We investigate the computational complexity of deciding whether a given inference rule is admissible for some modal and superintuitionistic logics. We state a broad condition unde...
In this paper we naturally define when a theory has bounded quantifier elimination, or is bounded model complete. We give several equivalent conditions for a theory to have each...
In this paper we will prove that the plus cupping degrees generate a definable ideal on c.e. degrees different from other ones known so far, thus answer a question asked by A. Li...
The main result of this paper is a partial answer to [7, Problem 5.5]: a finite iteration of Universal Meager forcing notions adds generic filters for many forcing notions determ...
If the Visser rules are admissible for an intermediate logic, they form a basis for the admissible rules of the logic. How to characterize the admissible rules of intermediate log...