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PolynomialCategoryLifting: Weaken constraint on that parameter

The extra requirement of SetCategory was not being used, as pointed
out by Ralf Hemmecke.
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GabrielDosReis committed Feb 7, 2016
1 parent 8d09ae5 commit a7ca7aef072617deed7a33647094adc3071a2012
Showing with 1 addition and 1 deletion.
  1. +1 −1 src/algebra/polycat.spad.pamphlet
@@ -630,7 +630,7 @@ PolynomialCategoryLifting(E,Vars,R,P,S): Exports == Implementation where
Vars: OrderedSet
R : Ring
P : PolynomialCategory(R, E, Vars)
S : SetCategory with
S : BasicType with
+ : (%, %) -> %
* : (%, %) -> %
**: (%, NonNegativeInteger) -> %

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