Find the dual of boolean algebra expresion S dual:

Question

S: (a^b) = a if a<=b
a) S* :(a^b)=a if a<=b
b) S* :(aVb)=a if a<=b
c) S* :(a^b)=a if a>=b
d) S* :(aVb)=a if a>=b

Answer 1

I think answer is b) S* :(aVb)=a if a<=b

Dual is obtained by replacing V with ^ and vice versa.

Comments

< sign not changed in >

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would there be change in sign in finding dual from <= to >=  or not here

Answer 2

the dual is change all and to or and vice versa . get the dual don't complement the variables . like a to a complement .

to find complement of a function change all or to and then change all the variable to compliment form