Connect with a knowledgeable community and get your questions answered on IDNLearn.com. Explore a wide array of topics and find reliable answers from our experienced community members.

1. Let
S

R
S⊆R and
p

R
p∈R. If there exists a sequence
{
x
k
}
{x
k

} in
S
S converging to
p
p, then
p
p is an accumulation point of
S
S