103. OCR A Level (H446) SLR15 – 1.4 Simplifying Boolean algebra

About this video

OCR Specification Reference
A Level 1.4.3c

Using Karnaugh maps to visually simplify Boolean algebra is only one technique, you also need to be able to carry out this skill by applying a range of simplification rules and laws. This videos introduces the rules and laws you need to know for your exam.

Key question:

- What are the rules for simplifying Boolean expressions?

00:00 Simplifying Boolean algebra
00:10 Intro
00:15 Simplifying Boolean algebra
00:53 Rules and laws of Boolean simplification
01:28 AND Rules
01:51 OR Rules
02:01 Understanding the general rules
03:23 Exam board rules and laws of Boolean simplification
03:46 De Morgan's law
06:46 Using De Morgan's law
09:18 Exam board rules and laws of Boolean simplification continued
09:34 Double negation
09:53 Association
10:15 Commutation
10:54 Distribution
11:39 Absorption
12:54 Key question
13:02 Boolean Algebra cheat sheet
13:57 Outro

Last updated: 22.07.26

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