Question

A poset(X,<) and X = {1,2,3,4}. The LB is
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Answer 1

Step-by-step explanation:

x - y is a multiple of n, e.g., with n=7, 9ℜ2, -3ℜ11, but 3 ℜ 7. ○ ... x)∈ℜ, for all x∈ A. ○. Ex 7 4 : For A = {1 2 3 4} a relation ℜ ⊆ A×A will be reflexive ... (A,R) is a partially ordered set / poset if R is a partial.