Welcome to Westonci.ca, where curiosity meets expertise. Ask any question and receive fast, accurate answers from our knowledgeable community. Get quick and reliable solutions to your questions from a community of experienced experts on our platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

let o be an open set and fix a ∈ o. show that if (an) is a sequence converging to a, then all but a finite number of the terms in (an) must be inside o.