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MLQ
2016
42views more  MLQ 2016»
8 years 7 months ago
A note on tall cardinals and level by level equivalence
Starting from a model V “ZFC + GCH + κ is supercompact + No cardinal is supercompact up to a measurable cardinal”, we force and construct a model V P such that V P “ZFC + ...
Arthur W. Apter
MLQ
2016
49views more  MLQ 2016»
8 years 7 months ago
Embedding classical in minimal implicational logic
Hajime Ishihara, Helmut Schwichtenberg
MLQ
2016
47views more  MLQ 2016»
8 years 7 months ago
A note on the substructural hierarchy
We prove that all axiomatic extensions of the full Lambek calculus with exchange can be axiomatized by formulas on the N3 level of the substructural hierarchy.
Emil Jerábek
MLQ
2016
45views more  MLQ 2016»
8 years 7 months ago
A note on the independence of premiss rule
In this paper, we prove that certain theories of (many-sorted) intuitionistic predicate logic is closed under the independence of premiss rule (IPR). As corollaries, we show that ...
Hajime Ishihara, Takako Nemoto