If you have triplets and one dies, are they twins?

I'm sticking with my "moon math"

TRIPLETS shall now be represented by T
TWINS shall now be represented by t
DEAD TRIPLET shall now be represented by D
SIBLINGS shall now be represented by S

T - D = S
T - D != t
 
If it looks like a duck, sounds like a duck then it must be a duck.


So with that logic if you only see two of the triplets... they are twins since they look like twins.



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If it looks like a duck, sounds like a duck then it must be a duck.


So with that logic if you only see two of the triplets... they are twins since they look like twins.



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ya but maybe they're fraternal triplets and don't look alike
 
Our heads are about to explode.



What if two of them were Siamese and the other was a singlet. Triplets or twins or i like cats.

what does their country of origin have anything to do with it?


or do you mean conjoined?