Discrete Structures Question on a Relation

[wolfmanzak]

Homework Statement

Let A be the set of all strings of a's and b's of length 4. Define a relation R on A as follows. For all s,t \in A, sRt, s has the same first two characters as t.

s=baaa
t=abaa

Homework Equations

The Attempt at a Solution

I just want to know if the order of the first two characters matters? if it does then they are not related, if it does not, they they are related.

 

[HallsofIvy]

What is the exact statement of the problem? I would be inclined to interpret "has the same first two characters" as meaning that order is not relevant- but then I'm not grading you!

 

[wolfmanzak]

Unfortunately that is the exact way the problem is written which is why I'm also a bit confused. I'm inclined to agree with you on the belief that order doesn't matter, but I wasn't entirely sure. I've tried finding a good example or a source of info on the internet but have yet to find one. Any thoughts?

Thanks,
WMZ