+0  
 
+2
74
2
avatar+2555 

I don't understand why in this case (3,3) or (2,2) is non-reflexive but (5,5) is reflexive

 Mar 5, 2021
 #1
avatar+112816 
0

Can anyone help Solveit ?

 

Set theory like this is quite alien to me.  I'm sorry I cannot help you Solveit.   sad

 Mar 8, 2021
 #2
avatar+2197 
+1

Yup... I have no idea either. What is that, I'd like to learn.

 Mar 8, 2021

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