Sciweavers

368 search results - page 27 / 74
» Arithmetic as a Theory Modulo
Sort
View
AML
2008
84views more  AML 2008»
13 years 8 months ago
Harrington's conservation theorem redone
Leo Harrington showed that the second-order theory of arithmetic WKL0 is 1 1-conservative over the theory RCA0. Harrington's proof is model-theoretic, making use of a forcing...
Fernando Ferreira, Gilda Ferreira
ESOP
2008
Springer
13 years 10 months ago
Cover Algorithms and Their Combination
This paper defines the cover of a formula with respect to a set of variables V in theory T to be the strongest quantifier-free formula that is implied by V : in theory T. Cover e...
Sumit Gulwani, Madan Musuvathi
DFG
2007
Springer
14 years 19 days ago
Why Interval Arithmetic is so Useful
: Interval arithmetic was introduced by Ramon Moore [Moo66] in the 1960s as an approach to bound rounding errors in mathematical computation. The theory of interval analysis emerge...
Younis Hijazi, Hans Hagen, Charles D. Hansen, Kenn...
CADE
2006
Springer
14 years 9 months ago
Verifying Mixed Real-Integer Quantifier Elimination
Abstract. We present a formally verified quantifier elimination procedure for the first order theory over linear mixed real-integer arithmetics in higher-order logic based on a wor...
Amine Chaieb
APAL
2010
88views more  APAL 2010»
13 years 8 months ago
Nonstandard arithmetic and recursive comprehension
First order reasoning about hyperintegers can prove things about sets of integers. In the author's paper Nonstandard Arithmetic and Reverse Mathematics, Bulletin of Symbolic L...
H. Jerome Keisler