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These operators create new lists.
A..B
[A,B,C,...]
[X in L: LIST  B: BOOL]: LIST
[E:expression  X in L]: LIST
[E:expression  X in L: LIST and B: BOOL]: LIST
A..B
creates the list of integers from
A
to
B
, both ends are included.
[A,B,C,...]
makes a list containing
A
,
B
,
C
and so on, in that order.
[X in L  B]
makes a list of those elements in
L
for which condition
B
is true.
[E  X in L]
evaluates the expression
E
for each
X
in
L
, and collects
the results in a new list.
[E  X in L and B]
evaluates the expression
E
for each
X
in
L
which
satisfies the condition
B
, and collects the results in a new list.
/**/ []; > empty list
[]
/**/ 1..4;
[1, 2, 3, 4]
/**/ [3,1,4,2];
[3, 1, 4, 2]
/**/ [N in 1..10  IsPrime(N)];
[2, 3, 5, 7]
/**/ [N^2  N in 1..4];
[1, 4, 9, 16]
/**/ [N^2  N in 1..10 and IsPrime(N)];
[4, 9, 25, 49]
