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The desire of generalizing some set-theoretic properties to the soft set theory motivated many researchers to define various types of soft operators. For example, they redefined the complement of a soft set, and soft union and intersection between two soft sets in a way that satisfies De Morgan's laws. In this paper, we introduce and study the concepts of T-soft subset and T-soft equality relations. Then, we utilize them to define the concepts of T-soft union and T-soft intersection for arbitrary family of soft sets. By T-soft union, we successfully keep some classical properties via soft set theory. We conclude this work by giving and investigating new types of soft linear equations with respect to some soft equality relations. Illustrative examples are provided to elucidate main obtained results.
Al-shami et al. (Tue,) studied this question.