Find 3-Set Venn Diagram: A,B,C w/ Empty Intersection

  • Topic:
  • Thread starter Thread starter paulmdrdo1
  • Start date Start date
  • Tags Tags
    Diagram Venn
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
3 replies · 2K views
paulmdrdo1
Messages
382
Reaction score
0
Find a Venn diagram containing three sets A, B, C such that $A\cap B\,\neq\,\emptyset$, $B\cap C\,\neq\,\emptyset$,and $C\cap A\,\neq\,\emptyset$, but $A\cap B\cap C\,=\,\emptyset$.

here's my answer please check if it is right.
View attachment 1127
 
Attachments
  • Venn1.3.jpg
    Venn1.3.jpg
    5.5 KB · Views: 162
Physics news on Phys.org
paulmdrdo said:
Find a Venn diagram containing three sets A, B, C such that $A\cap B\,\neq\,\emptyset$, $B\cap C\,\neq\,\emptyset$,and $C\cap A\,\neq\,\emptyset$, but $A\cap B\cap C\,=\,\emptyset$.

here's my answer please check if it is right.
View attachment 1127

What you have is not $A\cap C\ne \emptyset$

View attachment 1128
 
Attachments
  • Untitled.gif
    Untitled.gif
    941 bytes · Views: 155
You don't have to use perfect circles in Venn diagrams. Try more complex figures!
Also you don't have to show the intersections with shadows only! You can try figures containing objects.
 
Hello, paulmdrdo!

Find a Venn diagram containing three sets [tex]A, B, C[/tex] such that:
[tex]A\cap B\,\neq\,\emptyset,\;B\cap C\,\neq\, \emptyset,\,\text{and }C\cap A\,\neq\,\emptyset[/tex]
but [tex]A\cap B\cap C\,=\,\emptyset[/tex]

Here's my answer; please check if it is right.
View attachment 1127
No.
You have: [tex]C \cap A \,=\,\emptyset[/tex]The diagram might look like this:

Code:
              *               *
            *   *           *   *
          *       *       *       *
        *           *   *           *
      *       A       *       B       *
    *               *:::*               *
  *               *:::::::*               *
    *               *:::*               *
      *               *               *
        *     *-----*---*-----*     *
          *   |:::*       *:::|   *
            * |:*           *:| *
              *               *
              |       C       |
              |               |
              |               |
              |               |
              *---------------*