Let A = {a,b, c, d, e, ƒ}, and let G and H be the following equivalence relations in A: G = IA U {(a, b) , (b, a) , (b, c) , (c, b) , (a, c) , (c, a) , (d, e) , (e, d)} , H = IAU {(b, c) , (c, b)} . Clearly, H is a refinement of G. Exhibit the sets A/G, A/H, G/H, (A/H)/(G/H).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let A = {a, b, c, d, e, f}, and let G and H be the following equivalence
%3|
relations in A:
G = IAU{(a,b), (b, a) , (b, c) , (c, b) , (a, c) , (c, a) , (d, e), (e, d)} ,
H = IAU{(b, c) , (c, b)} .
%3D
Clearly, H is a refinement of G. Exhibit the sets A/G, A/H, G/H,
(A/H)/(G/H).
Transcribed Image Text:Let A = {a, b, c, d, e, f}, and let G and H be the following equivalence %3| relations in A: G = IAU{(a,b), (b, a) , (b, c) , (c, b) , (a, c) , (c, a) , (d, e), (e, d)} , H = IAU{(b, c) , (c, b)} . %3D Clearly, H is a refinement of G. Exhibit the sets A/G, A/H, G/H, (A/H)/(G/H).
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