Let X= {a,b,c,d}, Y = {1,2}, and G = {(a, 1), (b, 2), (d, 1)}. Is G the graph 7. of a function from the set X to the set Y? Briefly justify your answer.

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Q: If X={a,c,g} anc Σ={{a,c}, {a,g} {c,g}}, what is T(E)? . T(E)= {Ø, {a}, {g}, {a,c}, {a,g}, {c,g}, X}…

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Q: Prove that the sum of √√2 + √√3 is irrational. Prove or disprove: if dl(b+c)then dlb or dlc.

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