From Hindupedia, the Hindu Encyclopedia
By Swami Harshananda
Viruddha literally means ‘contradictory’.
In the statement, ‘Air is heavy because it is empty’, the middle term ‘empty’ is contradictory because it disproves the heaviness of air. This is called ‘viruddha’.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore