Your definitions seem good to me, both correct and to the point. -Christen Juzeszyn
This is a complete and correct definition. However, I would have worded it differently. The way it is currently is a little confusing regarding the shifted output. I would have said "...yields the same result as time shifting the output signal by the same time shift.", but this definition is nonetheless correct and quite usable. -Zachary Curosh
This is a good definition for a time-variant/invariant system but it was a little confusing on the first read-through. -Aishwar Sabesan
