http://www.w3.org/ns/prov#value | - @Andr?? Nicolas, in my answer I am simply pointing out that there is a problem with writing $\left(\sum_{n=1}^\infty n\right) - \left(\sum_{n=1}^\infty n\right)= \sum_{n=1}^\infty (n - n)$, because the equal sign is tantamount to a rearrangement of the series.
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