My point, which I still mantain, was that the way it is phrased in that entry is misleading. I don't agree at all with entries having claims like "some people agree with this, some people do not" because it gives the wrong idea of mathematics.
A claim like "there are a few mathematicians prefer to work without the principle of the excluded middle" or the like would be less controversial. By the way, I am willing to bet that in no branch of mathematics (except perhaps those which are close to foundations of mathematics) the community works without the PEM; this is only to remark the fact that the claim in the entry is misleading.
A possible fix is to incorporate some of the things mentioned in this discussion to the entry in order to clarify the situation; e.g. some historical remark, or some emphasis in the fact that virtually all of the current mathematics community assume the PEM, and in fact only a tiny amount of the information displayed in the enciclopaedia (or anywhere else) remains valid if you decide to 'reject' it.
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