Variable binding within lists (and tuples)

[Zoltan Lajos Kis]

Hi,

Could somebody explain what is the order of building the list and binding
the variables in the following examples?

> [A=2,A].
* 1: variable 'A' is unbound

> [B=2,B=3].
** exception error: no match of right hand side value 3

Thank you,
Zoltan.