CSL
2010
Springer
13 years 12 months ago
2010
Springer
We study the complexity of evaluating positive equality-free sentences of first-order (FO) logic over fixed, finite structures B. This may be seen as a natural generalisation of th...
CSL
2010
Springer
13 years 12 months ago
2010
Springer
We describe the formalisation of the normal forms of context-free grammars (CFGs) using the HOL4 theorem prover. These straightforward pen and paper proofs easily understood from t...