assign a value to a variable inside if body and call it as a condition in another if statement

i define variables by using following commands

for i=1:4
    syms H(i) G(i) D(i)
end

and values to thes variables inside body of if statement

for i=1:20
    if .....
            H(1)=1;
        break
    elseif
        continue
    else
        H(1)=0;
    end
end

now i call these variables in another if statement as a condition

if (H(1)==1) && (H(2)==1) && (H(3)==1) && (H(4)==1)
    figure; imshow(B); 
end

this code neither give error nor output. can someone tell me where i am wrong or why it does not give me output.

[Stephen23]

Is there a particular reason why you need to use symbolic variables?

If yes, why not use the symbolic vector syntax shown in the documentation?:

https://www.mathworks.com/help/symbolic/sym.html

[Zubia Mansoor]

No, particular reason. I needed to define a variable before using it in if statement. I also try H(i)=0; to initialize it but it still did not give me any output.