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» Forcing in proof theory
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AAAI
1997
13 years 8 months ago
Qualitative Rigid Body Mechanics
We present a theory of qualitative rigid body mechanics and describe a program that uses this theory to compute qualitative dynamic simulations.1 The program works directly from a...
Thomas F. Stahovich, Randall Davis, Howard E. Shro...
ENGL
2007
94views more  ENGL 2007»
13 years 7 months ago
Common subproofs in proof pairs
Abstract—In any formal theory, a proof is a sequence of well formed formulas (wff). Here, we consider the digraph whose nodes are proofs and the edges are pairs of proofs such t...
Guillermo Morales-Luna
CORR
2008
Springer
76views Education» more  CORR 2008»
13 years 7 months ago
Measurement of Large Forces and Deflections in Microstructures
Properties of typical MEMS materials have been widely investigated. Mechanical properties of MEMS structures depend not only on the bulk material properties, but also structural fa...
Kai Axel Hals, Einar Halvorsen, Xuyuan Chen
AMC
2007
100views more  AMC 2007»
13 years 7 months ago
An alternative proof for the explicit equations of motion for mechanical systems with independent non-ideal constraints
An alternative proof for the explicit equations of motion for mechanical systems with independent non-ideal constraints is proposed in this paper. These equations are derived with...
Po Chih Chen, Chia-Ou Chang, W. T. Chang Chien
LICS
2002
IEEE
14 years 12 days ago
The Proof Complexity of Linear Algebra
We introduce three formal theories of increasing strength for linear algebra in order to study the complexity of the concepts needed to prove the basic theorems of the subject. We...
Michael Soltys, Stephen A. Cook