# How to combine And/Or connections in building up Fuzzy rule base

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Dipankar Chowdhury on 28 Apr 2021
Answered: Pratyush Roy on 17 May 2021
Hi
How can I write rules of the following form?
IF Input1 = Low And Input2 = Medium or Input3 = High Then Output = Low
In my project, I am using 11 input parameters to predict one output parameter. I want to create a rule base of the following form:
IF (I1= X1 And I2=X2 And I2=X3 And I4=X4) Or (I5= X5 And I6=X6 And I7=X7 And I8=X8) Or I9=X9 Or I10=X10 Or I11=X11 Then Output=Z1
Can I combine And/Or connections in the FLS toolbox to build the rule base?
BR
Dipankar

Pratyush Roy on 17 May 2021
Hi Dipankar,
The documentation link here might be helpful to understand how to build a rule base using Fuzzy Logic Toolbox in MATLAB.
Hope this helps!

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