What is the numerical value of phi 17748000Solution indicate

Solution

{} indicates null set its valve is zero
numerical valve {x}=0
{}The empty set can be turned into a topological space, called the empty space,

in just one way: by defining the empty set to be open.
This empty topological space is the unique initial object in the category of topological spaces with continuous maps.
In fact, it is a strict initial object: only the empty set has a function to the empty set.

numerical valve of (177480000)=0