TreeSoft Set vs. HyperSoft Set and Fuzzy-Extensions of TreeSoft Sets
Florentín Smarandache · HyperSoft Set Methods in Engineering · 2024
The TreeSoft Set is more general than the HyperSoft Set. The TreeSoft Set is a union of HyperSoft Sets. To distinguish between the levels of attributes, we use the comma notation i.e. an attribute of level k has k-1 commas in between its indexes.