Please see the image below.
What does the bar symbol mean in this context?
[Math] In set theory, what does it mean for a variable to have a bar symbol above it
elementary-set-theorynotation
elementary-set-theorynotation
Please see the image below.
What does the bar symbol mean in this context?
Best Answer
The complement of the set $B$, also commonly denoted as $B'$ or $B^c$. It is the set:
$$\bar{B} = B^c = B' = \{x \mid x \not \in B\}$$