Category:Class Difference

From ProofWiki
Jump to navigation Jump to search

This category contains results about Class Difference.

Let $A$ and $B$ be two classes.


The (class) difference $A \setminus B$ of $A$ and $B$ is defined as the class of all sets $x$ such that $x \in A$ and $x \notin B$:

$x \in A \setminus B \iff x \in A \land x \notin A$

or:

$A \setminus B = \set {x: x \in A \land x \notin B}$

Pages in category "Class Difference"

The following 2 pages are in this category, out of 2 total.