ExamplesFD bridge.pl question

[jan.kelbel]

Hello,
I'm beginner in GNU Prolog, and I just study example file bridge.pl from
ExamplesFD directory. I don't understand one statement in the definition
of setup(K,Ende,Disj) predicate. What is the purpose of use of predicate 
reverse(Disj1,Disj) on line 59, i.e. why is it necessary to reverse the 
Disj1  list? I thought, that when the list Disj1 contains an element 
[S1,D1,S2,D2] for each pair of tasks that use the same resource (and S is 
start, D duration of each task), then the sequence of these elements is not 
important.

Thanks in advance,
Jan Kelbel







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