"Prof. Dr. Johannes Grabmeier" <johan...@grabmeier.net> writes:
| thanks Waldek for your quick answer, indeed, in generalizing code I had added
to a category
|
| --if R has characteristic() = 2 then
1. you are abusing the `has' notation :-)
2. it is well-known that the Spad compiler (from all AXIOM flavors)
is currently limited in the kind of predicates it can handle
at the category level.
Some students who took my class on abstract interpretation worked
on that issue in 2008-2009, but they never finished the
implementation. :-/
| -- xor: (%, %) -> %
| -- ++ xor(b,c) = b+c - componentwise in R
| -- oplus: (%, %) -> %
| -- ++ xor(b,c) = b+c - componentwise in R
|
| which caused the problem when compiling a domain for this category.
|
| If neccessary, I can send you all the code, actually, it is quite a bit.
|
|
| I guess this kind of attribute is not allowed.
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