A Possible Origin of Logic
  An origin is often an intriguing issue. It becomes doubly intriguing when the logical form of thinking is considered. In this paper we will investigate exactly that: we will conjecture on the origin of basic instruments of logical thinking.   As the starting point we consider a very general case of a subject interacting with an environment. The subject might often have a choice of actions to take. Additionally, it is of fundamental importance that as a rule the subject's internal representations of (beliefs about) the environment are inaccurate.   Beginning with this very general schema we will eventually arrive at a possible mechanism of how Logic could have emerged. Our reasoning will be supported with some in-depth case studies. 
Valeriy K. Bulitko