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Prove that A sube B and C sube D imply :...

Prove that `A sube B` and `C sube D` imply : `(A xxC) sube (B xxD)`.

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MODERN PUBLICATION-RELATIONS AND FUNCTIONS -EXERCISE
  1. IfA and B are non-empty sets and A xx B=B xx A, then

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  2. Let A be a non-empty set such that AxxB=AxxC. Show that B = C.

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  3. Prove that A sube B and C sube D imply : (A xxC) sube (B xxD).

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  4. If A sube B, prove that AxxA sube (A xxB) nn (BxxA).

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  5. If A sube B, prove that AxxC sube BxxC for any set C.

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  6. For any three sets A, B,C prove that : Axx (B uu C)= (AxxB) uu (AxxC)...

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  7. For any three sets A, B,C prove that : (A- B) xx C= (AxxC) - (BxxC).

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  8. For any three sets A, B,C prove that : Axx (B uu C)= (AxxB) uu (AxxC)...

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  9. For any three sets A, B,C prove that : (A nn B) xx C= (AxxC) nn (BxxC...

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  10. For any four sets A, B, C and D, prove that : (A nn B)xx (C nn D)= (A...

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  11. For any three sets A, B,C prove that : Axx(B^(c) uu C^(c))^(c)= (Axx...

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  12. For any three sets A, B,C prove that : Axx(B^(c) nn C^(c))^(c)= (AxxB...

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  13. State whether the following statement is true or false. If the stateme...

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  14. State whether the following statement is true or false. If the stateme...

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  15. State whether the following statement is true or false. If the stateme...

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  16. If A= {1, 2, 3} and B = {1, 2}, then find : AxxB.

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  17. If A= {1, 2, 3} and B = {1, 2}, then find : B xx A.

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  18. If A= {1, 2, 3} and B = {1, 2}, then find : Is AxxB= B xx A ?

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  19. If A= {1, 2, 3} and B = {1, 2}, then find : Represent AxxB graphically...

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  20. Let X = {- 2,0, 1}, Y = {2, 3}. Represent X xx Y and Y xx X graphicall...

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