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ICALP
2005
Springer
16 years 1 hour ago
Single-Key AIL-MACs from Any FIL-MAC
Abstract. We investigate a general paradigm for constructing arbitraryinput-length (AIL) MACs from fixed-input-length (FIL) MACs, define the waste as the relevant efficiency para...
Ueli M. Maurer, Johan Sjödin
TYPES
2004
Springer
15 years 11 months ago
Extracting a Normalization Algorithm in Isabelle/HOL
We present a formalization of a constructive proof of weak normalization for the simply-typed λ-calculus in the theorem prover Isabelle/HOL, and show how a program can be extracte...
Stefan Berghofer
TPHOL
2000
IEEE
15 years 11 months ago
Fast Tactic-Based Theorem Proving
Theorem provers for higher-order logics often use tactics to implement automated proof search. Tactics use a general-purpose metalanguage to implement both general-purpose reasonin...
Jason Hickey, Aleksey Nogin
ENTCS
2006
113views more  ENTCS 2006»
15 years 6 months ago
A Large-Scale Experiment in Executing Extracted Programs
It is a well-known fact that algorithms are often hidden inside mathematical proofs. If these proofs are formalized inside a proof assistant, then a mechanism called extraction ca...
Luís Cruz-Filipe, Pierre Letouzey
COMGEO
2010
ACM
15 years 6 months ago
Approximate centerpoints with proofs
We present the IteratedTverberg algorithm, the first deterministic algorithm for computing an approximate centerpoint of a set S Rd with running time subexponential in d. The alg...
Gary L. Miller, Donald Sheehy