Let (x,)
be a topological space. a nonempty collection sof open subsets of x
is called a subbasis for
if the collection of all finiteintersections of members of s forms
a basis for
.
let x be a nonempty set and s the collection of all subsets x \
{x}for

prove s is a subbasis for the finite- closed topology on x.

1696 hundred thousand

step-by-step explanation:

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

brandon has 4344 video games.  

step-by-step explanation

7373 - 2929 = 4344

pls let me know if it was correct