Report copyright - Negative Degree Inversion and Related Mattersbuilder.hufs.ac.kr/user/ibas/k2board/63CCED7FC0F942CD881C90672B46D...Inotherwords,theinversionin(1b)isoptional.Inthisrespect,NDI remindsusofSVI,sinceinthelatter,theinversionisoptional.These
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