Tagged Questions
11
votes
2answers
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When does “pairwise” strengthen and when does it weaken?
"Pairwise disjoint" is stronger than "disjoint"; it sometimes happens that $\displaystyle\bigcap\limits_{i\in I} A_i=\varnothing$ but for every $i,j$, or at least for some, one has $A_i \cap ...
2
votes
1answer
161 views
When is the composition of partial orders a partial order?
I have been doing some thinking about the compostition of relations and I've had trouble remembering a number of simple facts about what happens when we compose specific types of relations. I've had ...
