IITian Theorem
gopalan sudhakaran
PROFESSOR OF PHYSICS at I AM DOING RESEARCH ON MY OWN WAY AT "CHETHANA,H&C ROAD, WEST MUNDAKKAL,KOLLAM, INDIA,PIN-691001
If Proper time is an Ordered Mathematical Field,No Closed Time Loop can Exist in Minkowskian Space[ref:''Mathematical Philosophy of Time'' this paper could be read online on google]