Showing posts with label law of excluded middle. Show all posts
Showing posts with label law of excluded middle. Show all posts

Friday, 12 June 2015

Play with fuzzy sets


 PLAY WITH  FUZZY  SETS :

A set or a crisp set is defined  as a 

collection of elements . The elements are 

either a member or not a member of the 

set . But Fuzzy sets are more flexible in 

approach  as compared  to the sets .

Fuzzy set can be viewed as an 

extension & generalization 0f  the 

basic concepts of crisp set .It supports 

flexible sense of membership with a 

parameter called "membership  degree" . 

It is multivalued between 0 and 1 (both 

included). You  will be  surprised  to 

know that Fuzzy logics donot follow 

LAW  OF EXCLUDED MIDDLE & LAW 

OF CONTRADICTION .If  we will choose 

fuzzy union & intersection that will 

follow these law then , the operations 

will not satisfy distribution and 

idempotence .

LAW  OF EXCLUDED MIDDLE states 

that for any proposition , either that 

proposition is true , or its negation is 

true .
LAW  OF CONTRADICTION  states that 

two antiethical propositions cannot be 

true at the same time . For example - X 

cannot be NOT X simultaneously.
Distributive property :-
                        5(x+30) = 5x + 150 
Idempotence property :-
                          op( op(x)) == op(x)