Question

Let p be "It's going to rain" and q be "You need an umbrella." Which of the following statements is a biconditional?Select the correct answer below:You need an umbrella if it's going to rain.If it's going to rain then you need an umbrella.It's going to rain or you need an umbrella.None of the above

Answer 1

A biconditional statement is a logic statement that includes the phrase, "if and only if," sometimes abbreviated as "iff." The logical biconditional comes in several different forms:

. p iff q

. p if and only if q

. p↔q

Example of biconditional statement

A conditional statement is a logic statement that includes the phrase, "if-then." For example, "If a polygon has three sides, then it must be a triangle."

None of the answers has if then

Therefore, None of the above