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IMHO this shouldn't say heresies (plural) and apostasies (plural) but might be better stated in the singular:
I solemnly reject the heresy and apostasy of Vatican II,
and I reject any notion (of Bishop Fellay) that the majority of it is good.
There may be more than one heresy in Vat.II, but it is the singular SPIRIT that is the abiding problem, the unclean spirit of Vat.II, and likewise the apostasy is one, a defection from the truth, and should not be called "apostasies."
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