![Regular Expressions (RE) Empty set Φ A RE denotes the empty set Empty string λ A RE denotes the set {λ} Symbol a A RE denotes the set {a} Alternation M. - Regular Expressions (RE) Empty set Φ A RE denotes the empty set Empty string λ A RE denotes the set {λ} Symbol a A RE denotes the set {a} Alternation M. -](https://slideplayer.com/6652515/23/images/slide_1.jpg)
Regular Expressions (RE) Empty set Φ A RE denotes the empty set Empty string λ A RE denotes the set {λ} Symbol a A RE denotes the set {a} Alternation M. -
Empty Sets, Finite Sets, Infinite Sets and More | Your love life is an empty set. | By Mathematics in the Modern World | Facebook
![Given a non-empty set X, let * : P (X) → P (X) be defined as A * B = (A - B) ∪ (B - A) , - CBSE Class 12 Maths - Learn CBSE Forum Given a non-empty set X, let * : P (X) → P (X) be defined as A * B = (A - B) ∪ (B - A) , - CBSE Class 12 Maths - Learn CBSE Forum](https://ask.learncbse.in/uploads/db3785/original/3X/d/6/d6b792a4a5dc9a1c4c4f6e6f83f5d46427410d1f.png)