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Question: how to keep set members in order of addition

Question:how to keep set members in order of addition

mehdi jafari 769 Maple
ordering set
August 15 2019
0

i have a question about sets. how can i keep set members in order of addition not the defualt maple ordering.
in maple help, i saw the command setsort=0..8 but i do not know how to use it.
consider exmaple below:


 

> 

restart
> 

L:={}:
> 

for j in [3,5,6,1] do
birth:=j:
L:=`union`(L ,{j});
od;

3

  

{3}

  

5

  

{3, 5}

  

6

  

{3, 5, 6}

  

1

  

{1, 3, 5, 6}

 (1)
> 

 


how can i keep L as order of addition? L={3,5,6,1}. thanks in advance

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