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Abstract

LetXbe aT-module, T is a commutative ring with identity andKbe a proper submodule ofX. In thispaper we introduce the concepts of 2-visible submodules and fully 2-visible modules as a generalizations of visiblesubmodules and fully visible modules resp., whereKis said to be 2-visible wheneverK=I2Kfor every nonzeroidealIofTand AT-moduleXis called fully 2-visible if for any proper submodule of it is 2-visible.Study some ofthe properties of these concepts also discuss the relationship 2-visible submodules and fully 2-visible modules with2-pure submoules and other related submodules and modules resp. are given

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