058. AQA A Level SLR07 Maths for regular expressions Part 2
About this video
AQA Specification Reference
A Level 4.4.2.2
This is the second of two videos which focuses on some of the maths used for regular expressions. In this video we look at: Subsets, Proper subsets, Countable sets, Membership, Union, Intersection and Difference.
Key questions:
- What do we mean by subset and proper subset?
- What are the various set operations we can use to construct new sets from existing sets?
00:00 Maths for regular expressions - Part 2
00:13 Intro
00:18 Subset and proper subset
00:53 Set membership
01:20 Union
01:41 Intersection
01:52 Difference
02:23 Summary
02:39 Key questions
02:55 Outro
Last updated: 04.09.25
