Let A = {1, 2, 3, 4, 5}. Let F be the set of all functions from A to A. Define a relation R on F as follows: For all f, g € F, ƒ Rg ⇒ for all i ¤ A, f(i) ≤ g(i). (a) Is R reflexive? symmetric? antisymmetric? transitive? Prove your answers. (b) Prove or disprove: There exists g E F so that for all f € F, f Rg. (c) Prove or disprove: For all f € F, there exists g E F so that fRg.

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 = {1, 2, 3, 4, 5}. Let F be the set of all functions from A to A. Define a relation R on
F as follows:
For all f, g € F, f Rg ⇒ for all i ¤ A, f(i) ≤ g(i).
€
(a) Is R reflexive? symmetric? antisymmetric? transitive? Prove your answers.
(b) Prove or disprove: There exists g € ♬ so that for all ƒ € F, ƒ Rg.
(c) Prove or disprove: For all f = F, there exists g € F so that fRg.
Transcribed Image Text:Let A = {1, 2, 3, 4, 5}. Let F be the set of all functions from A to A. Define a relation R on F as follows: For all f, g € F, f Rg ⇒ for all i ¤ A, f(i) ≤ g(i). € (a) Is R reflexive? symmetric? antisymmetric? transitive? Prove your answers. (b) Prove or disprove: There exists g € ♬ so that for all ƒ € F, ƒ Rg. (c) Prove or disprove: For all f = F, there exists g € F so that fRg.
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