Get reliable answers to your questions at Westonci.ca, where our knowledgeable community is always ready to help. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Prove that every non-leaf in a tree is a cut-vertex. (Recall a cut-vertex is a vertex whose removal will disconnect the graph). Hint: Show two neighbors of the non-leaf x are in different components of T - X.