Question

what is the meaning of if and only if in sets?

Answer 1

Answer:

• if and only if. Biconditional. A way of writing two conditionals at once: both a conditional and its converse

Step-by-step explanation:

• The result is that the truth of either one of the connected statements requires the truth of the other (i.e. either both statements are true, or both are false). It is controversial whether the connective thus defined is properly rendered by the English "if and only if", with its pre-existing meaning