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On the set of integers I, if a binary op...

On the set of integers I, if a binary operation 'o' be defined as `aob = a - b` for every `a, b in I`, then :

A

association law holds

B

commutative law holds

C

l is not closed under this operation

D

l is closed under this operation

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The correct Answer is:
D
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QUANTUM CAT-NUMBER SYSTEM-QUESTION BANK
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  2. If x lt 0 lt y, then :

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  6. Which of the following relations is NOT always true?

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