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remove broken divexact
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@ -445,20 +445,6 @@ function *{T<:Number, S<:Number}(X::GroupRingElem{T}, Y::GroupRingElem{S}, check
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return result
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end
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function divexact{T}(X::GroupRingElem{T}, Y::GroupRingElem{T})
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if length(Y) != 1
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throw("Can not divide by a non-primitive element: $(Y)!")
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else
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idx = findfirst(Y)
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c = Y[idx]
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c != 0 || throw("Can not invert: $c not found in $Y")
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g = parent(Y).basis[idx]
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return X*1//c*parent(Y)(inv(g))
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end
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end
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###############################################################################
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#
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# *-involution
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