soft subset

Last-modified: 2012-02-13 (月) 19:46:06

Definition

  • For two soft sets (F , A) and (G , B) over a common universe U, we say that (F , A) is a soft subset of (G , B) if A ⊆ B and for all e ∈ A, F (e) and G(e) are identical approximations.
    We write imgtex.fcgi?%5bres=100%5d%7b%5c%5b%20%28F%2cA%29%5cwidetilde%7b%5csubset%7d%28G%2cB%29%20%5c%5d%7d%25.png .

Reference

  • Maji P. K., Biswas R., Roy A. R., Soft set theory. (English summary), Comput. Math. Appl. 45 (2003), no. 4-5, 555-562.