Well Defined Sets

The set of whole numbers.

• well defined set

• NOT a well defined set

The set of four legged animals in a zoo.

• well defined set

• NOT a well defined set

The set of best tiktok challenges.

• well defined set

• NOT a well defined set

The set of four legged winged animal.

• well defined set

• NOT a well defined set

The set of intelligent presidents.

• well defined set

• NOT a well defined set

The set of odd numbers.

• finite set

• infinite set

The set of even prime numbers.

• finite set

• infinite set

 $A\ =\ \left\{1,\ 3,\ 5,\ 7,\ 9\right\}$  

• finite set

• infinite set

 $A\ =\ \left\{2,\ 4,\ 6,\ ...\ ,\ 40\right\}$  

• finite set

• infinite set

 $A\ =\ \left\{2,\ 3,\ 5,\ 7,\ ...\right\}$  

• finite set

• infinite set