text: What is and? and is nothing but intersection. Okay, again here B dash, sorry, not B. So here we have got not B, not B is again nothing but B dash. So ಇಲ್ಲಿ ನೋಡಿ if A and B are two events ಅಂತ ಕೊಟ್ಟಿದ್ದಾರೆ.