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TPHOL
2002
IEEE
14 years 5 months ago
The 5 Colour Theorem in Isabelle/Isar
Based on an inductive definition of triangulations, a theory of undirected planar graphs is developed in Isabelle/HOL. The proof of the 5 colour theorem is discussed in some detai...
Gertrud Bauer, Tobias Nipkow
SAS
2007
Springer
140views Formal Methods» more  SAS 2007»
14 years 6 months ago
Formalised Inductive Reasoning in the Logic of Bunched Implications
We present a framework for inductive definitions in the logic of bunched implications, BI, and formulate two sequent calculus proof systems for inductive reasoning in this framewo...
James Brotherston