Question 1208677
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What is the cardinality of set R?


R = { {1, 2, 3,} {A, B, C} }


I see two sets inside a bigger set. What I see is the key word.


I say the cardinality is 2. 


You say? 
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The comma after "3" is placed in wrong place.



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<U>Comment from student</U> : Ok. I placed the command in the wrong location in the set. 
Here is setbR again: R = { {1, 2, 3} , {A, B, C} } Cardinality is 2. Yes???



<U>My response</U> : Yes.