Talk:Impossible event

The current state of the article is curious. It may also be asserted that "an impossible event is not the same as a possible event" with no real addition or detraction of meaning or utility. For the same reason, I deleted the Hurley reference, as it was "disconnected" by editing from the text of the article. Hotfeba (talk) 01:18, 13 January 2008 (UTC)

Is the sense given in the article common?
I usually see the sense described in the article referred to as "almost impossible event", "null event" or "event of measure/probability zero". If anything, "impossible event" seems to be commonly used for truly impossible events, along with statements like "P(impossible event) = 0, but P(E) = 0 does not imply in general that E is impossible". The "almost" qualifier is also natural as it is used in "almost surely" etc. in a similar fashion. -- Coffee2theorems (talk) 17:35, 1 May 2009 (UTC)


 * There seems to be something in what you are saying in the context of considering an ideal (set theory), which appears to be that which is small or negligible. I am looking for some source that will justify making a connection without being OR. Hotfeba (talk) 22:13, 15 May 2009 (UTC)


 * "Probability, Random Variables and Stochastic Processes" by Papoulis and Pillai states, "if an event N equals the impossible event with probability 1 then P(N) = 0. This does not, of course, mean that N [is equal to the impossible event]". This agrees with Coffee2theorems' comment "...P(E) = 0 does not imply in general that E is impossible." I am however not familiar with other textbooks and so will not edit the article. Goldenbluester (talk) 23:19, 17 February 2012 (UTC)