119 search results - page 10 / 24 » A First-Order Isomorphism Theorem |
CORR
2006
Springer
13 years 7 months ago
2006
Springer
We formalise and mechanise a construtive, proof theoretic proof of Craig's Interpolation Theorem in Isabelle/HOL. We give all the definitions and lemma statements both formal...
CLA
2004
13 years 9 months ago
2004
In [4] we have presented a new common platform for different types of fuzzification of a concept lattice. Now we show a pendant of the basic theorem on clasical concept lattices fo...
TYPES
1999
Springer
13 years 11 months ago
1999
Springer
We propose a method to search for a lemma in a goq proof library by using the lemma type as a key. The method is based on the concept of type isomorphism developed within the funct...
APAL
2004
13 years 7 months ago
2004
Gaifman's normal form theorem showed that every first order sentence of quantifier rank n is equivalent to a Boolean combination of "scattered local sentences", whe...
JSYML
2006
13 years 7 months ago
2006
We show that there is a restriction, or modification of the finite-variable fragments of First Order Logic in which a weak form of Craig's Interpolation Theorem holds but a s...