Give a specific reason why the following set R does not define an equivalence relation on the set {1, 2, 3, 4}.
R = {(1, 1), (2, 2), (3, 3), (4, 4), (2, 3), (2, 4), (4, 2)}
The relation is not ? . For example, 2 R 3 but ? Not Related ?

Question

Give a specific reason why the following set R does not define an equivalence relation on the set {1, 2, 3, 4}.
R = {(1, 1), (2, 2), (3, 3), (4, 4), (2, 3), (2, 4), (4, 2)}
The relation is not  ? . For example, 2 R 3 but ?   Not Related ?

zzr0ck3r · Answer

2 is related to 3, 2 is related to 4, but 3 is not related to 4

zzr0ck3r · Answer

ahh well they want you to use reflexive property
2 R 3 but 3 notR 2

anonymous · Answer

thanks, figured out the relation was not symmertic

zzr0ck3r · Answer

yes symmetric not reflexive, sorry I always get those mixed up

anonymous · Answer

I hate this book, like the class, hate the book

zzr0ck3r · Answer

lol