Recent content by thraxrules

Can anyone prove this theorem please? let (X,d) be a metric space, let x \in X , and let 0<\delta<\epsilon . Then cl(B(x,delta)) \subset B(x,epsilon)

Thanks =D, I feel like dx/dt will mean a different thing after I'm done :D

What about this book? https://www.amazon.com/dp/0763742341/?tag=pfamazon01-20

I think all what's left for me from what you said is the Hamiltonian and Lagrangian mechanics, so what should I do then?

I need a suggestion for a name of a general topology book, I'd be grateful if there's a link for it.