Adding element-wise constraint on each vector entry

[Jack1]

I have three vectors a, b, c of the same dimension. 

I would like to constrain each element-wise difference: |a_i - b_i| < c_i

I was wondering how could I do so in a for loop in Yalmip easily? thank you. 

[Johan Löfberg]

abs(a-b)<=c or more efficiently norm(a-b,inf) <= c or manually -c<=a-b<=c

[Johan Löfberg]

i.e no reason to use a for-loop