Hi, Sergiy*,<br /><br />I have uploaded your edited document, and I hope that you find the suggestions helpful. If you have any questions, please send a message to me via Editor World.<br /><br />Although I studied logic at university, including Boolean algebra, many years ago, I'm the first&nbsp;tp admit that the content of your paper falls well outside my intellectual&nbsp;ambit. As a result, I've provided more of a proofreading service than an editing service, but I helped smooth the flow whenever&nbsp;I could.<br /><br />Please proofread your document carefully. Even after several read-throughs, I sometimes still miss typos -- perhaps an apt subject one day for <em>t</em>-testing.&nbsp;<br /><br />Thank you for submitting&nbsp;your paper for review. <br /><br />Best wishes - George (TypeRighter)<br /><br />I am usually available for editing between 6:00 am and 10:30 pm (EST). If my status says 'unavailable', you can still reach me via Editor World.<br /><br />*Judging by the quality&nbsp;of your paper, I have a feeling I should call you Dr.&nbsp;