There is no statutory requirement that formal logic be adhered to during examination of patent claims. Examiners and patent practitioners are free to use a wide variety of discussion and argument ...

An excellent introduction to logic (in all possible worlds), September 24, 2002, by Dr. Lee D. Carlson (Baltimore, Maryland USA) [Amazon.com] It is too bad this book is out of print, for the authors ...

Epistemic logic constitutes a rigorous framework for representing and reasoning about knowledge and belief. Central to this discipline is the formalisation of how agents acquire, retain and attribute ...