Posted by John Nichols on February 20, 2005 at 21:47:20 from 165.91.196.86 user Mcneacail.
In Reply to: Re: dowsing still in use posted by John Nichols on February 20, 2005 at 21:14:12:
It is self evident that Set 4 is a subset of Set 3.
The thing we are looking at is "Are all the people in the set of all humans call it Set H all contained in Set 3?"
Sets 1 and 2 are mutually exclusive but may each be the null set N sets. Set 3 and 4 are not the null set from the proof of the second hypothesis. Sets 1+2+3 = Set H
Finally if Set 1 and Set 2 are null sets N then Set 3 = Set H and Andy B is entirely correct.
But that does not stop me having fun with this:
Thanks Andy for the peer review - keep it up old chap - so to speak.
Of course I am not implying that Andy B is a member of the old chaps set - merely using an idiomatic expression taught to me by my mother.
JMN