Direct Proof For ∀x ∈ R, if 0<x-3 then 7< 4x. Prove by contraposition For ∀x,y...

Question

Question

Direct Proof For ∀x ∈ R, if 0<x-3 then 7< 4x.

Prove by contraposition For ∀x,y ∈ R, if x+5 ≤ y+2 then x ≤ y.

Prove by contradiction For ∀x,y ∈ R, if xy< 4 then x<2 or y<2.

Answer 1

Answer #1

9 10 11 12 4+5 2+5) 2 Sah Dimect Puasf: Given HAER, OK 2-3 2) 3 » 4m) 1277 => 4x37. proved Proof by contraposition : Let asy

Answer 2

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