Question: For this Hasse diagram: 1. What are the maximal elements? Why? 2. What are the minimal elements? Why? 3. Is there a greatest element? Why?

For this Hasse diagram: 1. What are the maximal elements? Why?

For this Hasse diagram: 1. What are the maximal elements? Why? 2. What are the minimal elements? Why? 3. Is there a greatest element? Why? 4. Is there a least element? Why? 5. What are all the upper bounds of {a,b,c} ? Why? 6. What is the least upper bound of {a,b,c}, if it exists? Why? 7. What are all the lower bounds of {f,g,h} ? Why? 8. What is the greatest lower bound of {f,g,h}, if it exists? Why

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