Week 3: Function and its types

Difference between relation and function.  Into functiononto function, 1-1 function, bijective function. Set-Builder notation for a function 

 

https://archive.org/details/fundamentalsoftr00swok/page/8 (Pages 27-36)

https://drive.google.com/file/d/1DLur8SbKFClV-Adeta5CQyQF67U1_g-z/view (Pages 59-64)