Talk:Null (mathematics)

Zero

This page is wrong. Its ays that null in mathematics is treated the same as zero. That is FAR from the truth! Null and zero are NOT the same thing. Whereas it is true that the null set is the set of elements that has zero elements in it, that is not the same thing as saying that the null and zero are the same thing.

Here's an example to illustrate this:

Consider the set of numbers, A, that represents all values greater than or equal to 0; B is the set of all numbers less than or equal to 0; C is the set of all numbers that are strictly greater than 0; and D represents the set of all numbers strictly less than 0.

The intersection of A & B = {zero}.

The intersection of C & D = {null}.

Zero is a number, null is not. Therefore, they cannot pssobhly be the same thing.

Professor Jon W. Ulrich

I totally agree with the above. "null" means nothingness, the non-existence of even an empty basket called "empty basket" (a.k.a. "zero"). Nada. To be correct there should be no symbol for it. Because even the symbol on the page exists as an object. But I guess people use the Ø to indicate "nothingness". wvbaileyWvbailey 16:52, 15 September 2006 (UTC)[reply]

As a linguistics student, I also use null frequently, and it's definitely not the same thing as zero. When I get a chance, I'll try to remember to come back and work on this page so that the article reflects this discussion page. Guypersonson (talk) 18:41, 18 February 2008 (UTC) when the set of numbers is build from the set axioms the zero is "defined" as the null set but i guess is a technicality —Preceding unsigned comment added by Berto ramirez puentes (talk • contribs) 01:24, 22 August 2009 (UTC)[reply]

Null potent

I have removed the statement that "null potent" is used as a synonym of "nilpotent". This may be true, but I have never come across the expression in that sense, and searching has failed to provide any sources, other than wiki pages and sources clearly derived from this Wikipedia article. If someone can provide a reliable source for the statement then of course it can go back in. JamesBWatson (talk) 10:32, 27 September 2012 (UTC)[reply]

talk

Why this article is not by the symbol? empty set --Khalid Al-Salom (talk) 20:21, 27 March 2020 (UTC)[reply]

This article is about the uses of the "null" concept in mathematics. One, and only one, of those uses is that of the "null set" that only sometimes means the empty set. A common, but not unique, symbol for the empty set does not add anything to this page. There already is a page, null symbol, which discusses this symbol at length.--Bill Cherowitzo (talk) 18:58, 28 March 2020 (UTC)[reply]

intangibility

neutral is a zero, therefore neuter is an infranull/infernull. now, the immanent would be supernull/supranull, right? or paranull for extending outside each extremity Kautr (talk) 15:13, 16 June 2021 (UTC)[reply]