MLQ
2008
14 years 13 days ago
2008
We observe that removing contraction from a standard sequent calculus for first-order predicate logic preserves completeness for the modal fragment.
ENTCS
2010
14 years 16 days ago
2010
We formulate a unified display calculus proof theory for the four principal varieties of bunched logic by combining display calculi for their component logics. Our calculi satisfy...
TABLEAUX
1995
Springer
14 years 4 months ago
1995
Springer
We present a procedure transforming intuitionistic matrix proofs into proofs within the intuitionistic standard sequent calculus. The transformation is based on L. Wallen’s proof...