a) $(a,b)$
b) Any finite set.
c) The set of natural numbers.
d) The set of $\mathbb R-\mathbb Q$=irrational numbers.
I will appreciate your answers..
a) $(a,b)$
b) Any finite set.
c) The set of natural numbers.
d) The set of $\mathbb R-\mathbb Q$=irrational numbers.
I will appreciate your answers..