) Determine the truth sets for the following predicates
(i) x, y ∈ Z such that x ≤ y
(ii) x, y ∈ Z such that (x + y = 0) ∨ (xy = 0).
(i)
for all cases
Which means that for every value of x, y has to be greater else the statement becomes false.
(ii)
x = 0, y Z or
y = 0, x Z
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