which of the following statements are true? justify your answers i) the contrapositive of "not a ⇒ not b' is "a&b', where a and b are two statements. ii) any set can be represented by the listing method
The Answer to the Question
is below this banner.
Here's the Solution to this Question
i) According to the definition, contrapositive of is . So, contrapositive of is , or , which is not equal to a&b. So, the first statement is false
ii) Listing method is a method of presenting the set when it's element are written in curly brackets and separated by comma. That means that only sets with finite amount of elements can be presented in such a way. So, this statement is also false