You are viewing a free preview of this lesson.
Subscribe to unlock all 10 lessons in this course and every other course on LearningBro.
Boolean algebra is the mathematical system used to analyse and simplify logic expressions. It provides a set of laws (rules) that allow you to manipulate and reduce expressions, just as algebraic laws allow you to simplify mathematical equations. Mastering these laws is essential for the OCR H446 exam.
In this lesson, we use the following notation:
| Symbol | Meaning |
|---|---|
| . or AND | Logical AND |
| + or OR | Logical OR |
| NOT A or A' | Logical NOT (complement) |
| 1 | TRUE (logic high) |
| 0 | FALSE (logic low) |
The identity laws state that combining a variable with the identity element leaves the variable unchanged.
Subscribe to continue reading
Get full access to this lesson and all 10 lessons in this course.