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» On weak and strong interpolation in algebraic logics
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JSYML
2006
98views more  JSYML 2006»
13 years 5 months ago
On weak and strong interpolation in algebraic logics
We show that there is a restriction, or modification of the finite-variable fragments of First Order Logic in which a weak form of Craig's Interpolation Theorem holds but a s...
Saharon Shelah, Gábor Sági
LOGCOM
2010
152views more  LOGCOM 2010»
12 years 12 months ago
Constructive Logic with Strong Negation as a Substructural Logic
Gentzen systems are introduced for Spinks and Veroff's substructural logic corresponding to constructive logic with strong negation, and some logics in its vicinity. It has b...
Manuela Busaniche, Roberto Cignoli
LOGCOM
2006
78views more  LOGCOM 2006»
13 years 5 months ago
On Weakly Cancellative Fuzzy Logics
Starting from a decomposition result of MTL-chains as ordinal sums, we focus our attention on a particular kind of indecomposable semihoops, namely weakly cancellative semihoops. ...
Franco Montagna, Carles Noguera, Rostislav Horc&ia...
COMPUTING
2006
126views more  COMPUTING 2006»
13 years 5 months ago
Algebraic Multigrid Based on Computational Molecules, 1: Scalar Elliptic Problems
We consider the problem of splitting a symmetric positive definite (SPD) stiffness matrix A arising from finite element discretization into the sum of edge matrices thereby assumi...
J. K. Kraus, Josef Schicho
LOGCOM
2010
158views more  LOGCOM 2010»
13 years 3 months ago
Applying Universal Algebra to Lambda Calculus
The aim of this paper is double. From one side we survey the knowledge we have acquired these last ten years about the lattice of all λ-theories (= equational extensions of untype...
Giulio Manzonetto, Antonino Salibra