FUNCTION: preprojposet - compute the beginning of the postprojective component for a poset
CALLING SEQUENCE:
preprojposet(p)
p - a poset
SYNOPSIS:
EXAMPLES:
>
a:=[4, [[1, 2, 3, 4]]];
> preprojposet(a);
compute coordinate vectors (c)
or dimension vectors (d) ?
d
Permutation (y/n) ?
y
0 1 2 3 4
3 0 2 1 4
SEE ALSO: preproj
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