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» Profinite Heyting Algebras
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AML
2006
83views more  AML 2006»
13 years 6 months ago
The Medvedev lattice of computably closed sets
Simpson introduced the lattice P of 0 1 classes under Medvedev reducibility. Questions regarding completeness in P are related to questions about measure and randomness. We presen...
Sebastiaan Terwijn
JSYML
2008
66views more  JSYML 2008»
13 years 6 months ago
Special groups whose isometry relation is a finite union of cosets
0-stable 0-categorical linked quaternionic mappings are studied and are shown to correspond (in some sense) to special groups which are 0stable, 0-categorical, satisfy AP(3) and ha...
Vincent Astier
BIRTHDAY
2009
Springer
14 years 1 months ago
Nonassociative Lambek Calculus with Additives and Context-Free Languages
We study Nonassociative Lambek Calculus with additives ∧, ∨, satisfying the distributive law (Distributive Full Nonassociative Lambek Calculus DFNL). We prove that categorial g...
Wojciech Buszkowski, Maciej Farulewski
SLOGICA
2008
135views more  SLOGICA 2008»
13 years 6 months ago
A Way to Interpret Lukasiewicz Logic and Basic Logic
Fuzzy logics are in most cases based on an ad-hoc decision about the interpretation of the conjunction. If they are useful or not can typically be found out only by testing them wi...
Thomas Vetterlein