Page 8 - Chapt1

Hubungan antara elemen & himpunan

Kasus Biner : untuk A, B, C (menununjukkan

elemen tertentu x himpunan)

dan himpunan A a, b, c, x, y,z (menunjukkan
elemen himpunan

1: x milik A dilambangkan x ∈A

2: x bukan milik A dilambangkan x ∉ A

Fuzzy Sets

The collections of rich people, young girls, so on and so forth

Note: The words rich, young, beautiful, cool, hot, fat, thin etc. are fuzzy

(not well defined). Refer to Wikipedia for more details about Fuzzy

mathematics: http://en.wikipedia.org/wiki/Fuzzy_mathematics