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scorpius1782
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Homework Statement
xRy iff (x+y)2=1
determine if reflexive, irreflexive or neither
Homework Equations
The Attempt at a Solution
I'm having trouble understanding the definitions. I know that reflexive means that ever element is related to itself and that irreflexive means that no element is related to itself but I don't really understand what that means.
For this problem it is only true y=-x-1 or y=1-x.
But I don't understand what to do from here. Does this mean that since x and y are dependent on one another then they are reflexive? But how would I know if it an element in 'x' (say 10) is dependent onitself?