Boolean Expression for Relay Contacts and Lamp

[cjm181]

Homework Statement

In the diagram, Y006 is a lamp, and X & R references are relay contacts. Write down a Boolean expression for the lamp to light.

Homework Equations

The Attempt at a Solution

This is what I have done as an interim step to help me visualise what's going on:

This is the final answer

Is this correct?

Thanks

 

[.Scott]

That is it!