If we say that we have no sin we deceive ourselves and the truth is not in us

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If we say that we have no sin, we deceive ourselves, and the truth is not in us.
Halsted had suggested a problem in one of his classes which had led Moore to prove that one of Hilbert s geometry axioms was redundant

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Halsted had suggested a problem in one of his classes which had led Moore to prove that one of Hilbert 's geometry axioms was redundant.
Tubes pipes and hollow profiles for example open seam or welded riveted or similarly closed of iron or steel excl of cast iron seamless tubes and pipes and tubes and pipes having internal and external circular crosssections and an external dia

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Tubes, pipes and hollow profiles "for example, open seam or welded, riveted or similarly closed", of iron or steel (excl. of cast iron, seamless tubes and pipes and tubes and pipes having internal and external circular cross-sections and an external dia