Why Big and Small this pair of values that doesn't match Boolean logic. Another options: 1. True and False 2. 0 and 1 3. On and Off

Hi Raj, Because Boolean values are mutually exclusive and collectively exhaustive. If it is not 0, it is 1. There is no other option. With Big/Small it can be Medium, so big and small are not all possibilities (not collectively exhaustive). Best, Iliya