Ch 7 · Boolean Algebra (A Level) · Theory

Topic 7 of 10 in Boolean Logic & Logic Gates — How Machines Decide — 2 lessons.

Simplifying Expressions

At A Level you simplify Boolean expressions so circuits use fewer gates (cheaper, faster). Some core identities:

De Morgan's Laws

De Morgan's Laws let you "break the bar" and swap the operator:

All topics in Theory Boolean-logic

1. Why Logic Gates
2. NOT, AND, OR
3. NAND, NOR, XOR
4. Truth Tables
5. From Problem to Circuit
6. Logic Expressions
7. Boolean Algebra (A Level)
8. Karnaugh Maps & Flip-Flops (A Level)
9. Gates That Do Arithmetic
10. Check Your Understanding