hey! can anyone help me out with Venn Diagrams? im lost.. basically my teacher said you need to fix it/redo it but did not explain what was wrong.. so this is what i've done so far.. the other part is logic gates which is a part of the whole thing and i might have made a mistake with one of them (AND/OR/NOT) http://vstanced.com/datas/users/untitled_1_1.zip can anyone who properly understands them check it and tell me if i done it right or not.. i don't want anyone to do it for me just some help would be appreciated.. i need to hand it in tomorrow and it has to be right

I would say: AND A-B 0,1,7 OR A-B 0,1,2,3,4,6,7 A-C 0,1,4,5,6,8,9 B-C 0,1,2,3,5,8,9 NOT A 2,3,5,8,9,10,11,12,13,14,15 B 4,5,6,8,9,10,11,12,13,14,15 c 2,3,4,6,7,10,11,12,13,14,15 only differences i have from you are: AND A-B OR A-C OR B-C

I can't see anything wrong with the diagram but in part C) shouldn't it be A AND B = 0, 1, 7 A OR B = 0, 1, 2, 3, 4, 6, 7 (you missed the 2) A OR C = 0, 1, 4, 5, 6, 7, 8, 9 (you missed the 8) And I think the rest are right Might wat to wait for someone to confirm though EDIT: ^^ Touch I think there should be a 7 in A OR C

AND A-B 0,1,7 thats the problem with AND as the teacher explained if its in the middle where all the circles meet, it does not need to be showed in a-b(at the diagram) where i have the 7 and he said for me to remove it so i did the same in part C which is what confuses me now.. should i leave 0,1 or remove it? @frying_pan_cat - thanks for noting them(a or b - a or c) @touch - thanks, i might leave with 0,1 and you missed a 7 on a-c got any more ideas about 0,1 on part C? thanks for helping out!

A B and C are subsets of the numbers 0 to 15. The diagram basically has 3 circles to represent A B and C and where they overlap is where they share numbers ie. they all contain 0 and 1 so the space where they all overlap has 0 and 1 in. The next bit is logical AND, OR & NOT, so A AND B is the numbers in both A and B, etc.

0, 1 should be left in in part C since A AND B are the numbers on both A and B and have nothing to do with C. I think what the teacher is saying is that in the diagram you can't put 0, 1 in the part where just A and B overlap as each number should appear just once in the entire diagram and as 0, 1 are in C too they must therefore be put in the triple overlap. I hope that makes sense