A function is Continuous on X iff for each subset V open in Y, f inverse V is open in X (Proof)

In this video we will discuss a theorem 7.10.2 in chapter 7 Theorem states that " Let X and Y be topological Space. A function is Continuous on X iff for each subset V open in Y, f inverse V is open in X (Proof) " Link of complete Playlist of Topology.    • Topology on a Set | Its Conditions & Examp...   If you feel any doubt about this theorem then you will ask me through comments... If you understand my videos then please like and share these videos...... THANK YOU #TheoremonContinuity #RelatedTheoremToContinuousFunction