Sciweavers

344 search results - page 24 / 69
» Some Theorems We Should Prove
Sort
View
LICS
2010
IEEE
13 years 5 months ago
Fixed-Point Definability and Polynomial Time on Graphs with Excluded Minors
We prove that fixed-point logic with counting captures polynomial time on all classes of graphs with excluded minors. That is, for every class C of graphs such that some graph H is...
Martin Grohe
BIRTHDAY
2006
Springer
13 years 11 months ago
Reductio ad Absurdum: Planning Proofs by Contradiction
Sometimes it is pragmatically useful to prove a theorem by contradiction rather than finding a direct proof. Some reductio ad absurdum arguments have made mathematical history and ...
Erica Melis, Martin Pollet, Jörg H. Siekmann
CRYPTO
2001
Springer
139views Cryptology» more  CRYPTO 2001»
13 years 12 months ago
Soundness in the Public-Key Model
The public-key model for interactive proofs has proved to be quite effective in improving protocol efficiency [CGGM00]. We argue, however, that its soundness notion is more subtle...
Silvio Micali, Leonid Reyzin
CORR
1998
Springer
104views Education» more  CORR 1998»
13 years 7 months ago
Monotonicity and Persistence in Preferential Logics
An important characteristic of many logics for Arti cial Intelligence is their nonmonotonicity. This means that adding a formula to the premises can invalidate some of the consequ...
Joeri Engelfriet
IFM
2010
Springer
183views Formal Methods» more  IFM 2010»
13 years 5 months ago
Certified Absence of Dangling Pointers in a Language with Explicit Deallocation
Safe is a first-order eager functional language with facilities for programmer controlled destruction and copying of data structures. It provides also regions, i.e. disjoint parts...
Javier de Dios, Manuel Montenegro, Ricardo Pe&ntil...