300 search results - page 15 / 60 » Extension of a theorem of Whitney |
APAL
2005
13 years 7 months ago
2005
In this paper we consider distributive modal logic, a setting in which we may add modalities, such as classical types of modalities as well as weak forms of negation, to the fragm...
FOIKS
2006
Springer
13 years 11 months ago
2006
Springer
It is claimed in [45] that first-order theorem provers are not efficient for reasoning with ontologies based on description logics compared to specialised description logic reasone...
BIRTHDAY
1997
Springer
13 years 12 months ago
1997
Springer
Abstract. Logic preservation theorems often have the form of a syntax/semantics correspondence. For example, the Los-Tarski theorem asserts that a rst-order sentence is preserved b...
JSYML
2002
13 years 7 months ago
2002
f orderings provide an abstract framework in which to study spaces of orderings of formally real fields. Spaces of orderings of finite chain length are well understood [9] [12]. Th...
JUCS
2010
13 years 2 months ago
2010
: Veldman proved that the contrapositive of countable binary choice is a theorem of full-fledged intuitionism, to which end he used a principle of continuous choice and the fan the...