Recent content by Garcher

  1. G

    Defining Closed, Open, and Compact Sets in R^n

    Homework Statement How to define closed,, open and compact sets?Are they bounded or not? Homework Equations For example {x,y:1<x<2} The Attempt at a Solution It's is opened as all points are inner Can you please say the rule for defining the type of the set? Like for example...