let (X, T) be a topological space and R a base for T .prove that A ⊂ X is dense in the space iff each non empty of R contains a point of A

step-by-step explanation:

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

i believe it is b and c. (side note, i got the same computer from k-12 lol i’m in 8th grade and this is my first year, will it get

step-by-step explanation:

b segment jm is correct i think