Excuse me,how to do this type of question?

Using the laws of the algebra of sets show that

(a-b)∩(a∩b)'=a∩b'

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- May 26th 2010, 12:45 AMmayalgebraic laws of sets
Excuse me,how to do this type of question?

Using the laws of the algebra of sets show that

(a-b)∩(a∩b)'=a∩b' - May 26th 2010, 06:00 AMDeadstar

Where we used the following rules...

- May 26th 2010, 06:01 AMWilmer
- May 26th 2010, 07:43 AMGrandad
Hello everyone

All that Deadstar says is correct, but I think the statement*Absorption Law*).

You prove it like this:

- May 26th 2010, 07:45 AMmay

[/quote]

how to know when to apply this rule? - May 26th 2010, 07:48 AMGrandad
- May 26th 2010, 07:56 AMmay
- May 26th 2010, 07:59 AMmay
- May 26th 2010, 08:05 AMGrandad
Hello mayThis uses the Distributive Law:

Yes, I'm rather afraid that you do. As I said - you'll need lots of practice!

Grandad

PS ... and to answer your extra question, following your edit:

uses what I have always known as an*Identity Law*, but others sometimes refer to as a*Domination Law*.

See, for example, here. - May 27th 2010, 09:11 AMmay
- May 27th 2010, 09:22 AMmay
- May 27th 2010, 02:31 PMGrandad