Question

Let p: the whole number has one digit. let q: the whole number is less than 10. which represents "the whole number has one digit if and only if the whole number is less than 10"? p ∨ q p ∧ q p → q p ↔ q

Answer 1

"If and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. The correct option is D.

What is "if and only if" operator?

In logic and related subjects such as mathematics and philosophy, "if and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. It is represented by ⇔ or ↔.

The two of the events are

• p: the whole number has one digit.
• q: the whole number is less than 10.

Now, the representation of  "the whole number has one digit if and only if the whole number is less than 10" is done as p ↔ q.

Hence, the correct option is D.

Learn more about "if and only if" operator:

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