About Samurai Shiatsu / Steve  

I was born in AUSTRALIA

My Childhood Friend....
Astroboy.......



Now I am living in,,,,, JAPAN













Admin for, Mountains Anywhere,





Admin for, Temples, Shrines & Castles of Japan,
www.flickr.com/groups/tscj/






logic is studied as a branch of philosophy, one part of the classical trivium, which consisted of grammar, logic, and rhetoric. Since the mid-nineteenth century formal logic has been studied in the context of foundations of mathematics, where it was often called symbolic logic. In 1903 Alfred North Whitehead and Bertrand Russell attempted to establish logic formally as the cornerstone of mathematics with the publication of Principia Mathematica.[2] However, except for the elementary part, the system of Principia is no longer much used, having been largely supplanted by set theory. As the study of formal logic expanded, research no longer focused solely on foundational issues, and the study of several resulting areas of mathematics came to be called mathematical logic. The development of formal logic and its implementation in computing machinery is the foundation of computer science.