http://reply.papertrans.cn/3/246/24514/24514-31.png
http://reply.papertrans.cn/3/246/24514/24514-32.png
http://reply.papertrans.cn/3/246/24514/24514-33.png
Submitted on: 02 June 2008.
Revised on: 13 June 2008.
Accepted on: 06 July 2008.
PHILOSOPHY OF SCIENCE---CAMBRIDGE UNIV PRESS
http://reply.papertrans.cn/3/246/24514/24514-35.png
Submitted on: 07 April 2001.
Revised on: 20 April 2001.
Accepted on: 27 April 2001.
PHILOSOPHY OF SCIENCE---CAMBRIDGE UNIV PRESS