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**reallylongnickname****Member**- Registered: 2011-03-30
- Posts: 50

This is Boolean rule#11. (It is not complete I know). My Q is, how did the

develop in the equation in line 4?rule #10 A = A + AB

rule # 7 A = AA

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**muxdemux****Member**- Registered: 2012-12-23
- Posts: 80

I don't think they got it from line 3. With or without that term, the statement is the same:

This is because

*Last edited by muxdemux (2013-01-20 16:26:40)*

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**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,562

Venn diagrams are circular usually and Karnaugh maps are gridlike square-ish, but they are both one and the same except that the

Karnaugh map encloses the zero zero zero case in a box, whereas a venn diagram puts the zero zer zero case outside all the circles and does not

put a circle around it, though you could circle everything and that would make them more similar.

**igloo** **myrtilles** **fourmis**

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