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Wow! Thanks!
I didn't know it was that simple.
I guess I was having a hard time understanding our teacher.
Thanks much!
Hi!
Will someone help me please?
We just finished our exam in discrete math. Here is the exact problem from our exam (I still don't get how our teacher corrected the exam):
Let S={0,1,2,4,6}. Test the binary relation on S for reflexivity, symmetry, antisymmetry, and transitivity.
p = {(0,0),(1,1),(2,2),(4,4),(6,6),(0,1),(1,2),(2,4),(4,6)}
My answer was:
Reflexivity: Yes.
Symmetry: No.
Antisymmetry: No.
Transitivity: Yes.
My teacher's answer was:
Reflexivity: Yes.
Symmetry: No.
Antisymmetry: Yes.
Transitivity: No.
I understand how it is not transitive since (0,1) and (1,2) are related there should be a (0,2) element... and so on...
I just don't understand antisymmetry.
Thanks! I could use any help I can get.
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