Question

Does the symbol that looks like ( it looks like an O with a / through it) O/this mean intersection?

Answer 1

In Algebra.

Answer 2

\[\phi \]

Answer 3

Yeah.

Answer 4

If your "intersection" is EMPTY, the symbol for a Null Set might be \(\phi\).

Answer 5

Is it or not?

Answer 6

it is an intersection bcs it intersects in the middle of the shape

Answer 7

ok, thanks

Answer 8

So? Does it have any elements or is it empty?

Answer 9

\[\emptyset \]
is the EMPTY set. The set containing precisely ZERO elements.
\[\phi\]
is a greek letter. Phi.

Answer 10

Right. And Ø is a letter common to some Scandinavian Languages.

Easily mistaken symbols. Make sure you know what is meant.