







The uniqueness of the lub 
20151025 

Aishwarya pose la question : Prove that if the lub and glb of a set exist then they are unique Penny Nom lui répond. 





Scheduling for a bridge club 
20150909 

margot pose la question : Can you help me with scheduling our bridge club?
8 rounds are played with four teams together.
There are 16 teams in total, so our schedule should look like eight 4x4 boxes.
(Each round the four teams play each other over the course of the evening) Victoria West lui répond. 





A dinner club schedule 
20071012 

irv pose la question : The problem is that I have 12 couples, 1 through 12,
in a dinner club, and each couple is host once with 3 of the other couples.
he dinners will take place over 4 months. I am trying to not repeat any of
the couples. We had the formula for 16 and 20 couples but not for 12.
Are you able to help with the groupings for 12. Thanks very much.
Irv Victoria West lui répond. 

