I liked how you gave specific examples with your proofs. It helps the reader understand what's going on. Your explanations for memoryless systems and systems with memory was clear. -Phil Cannon
Your examples are correct and make the definition more clearer. Actually I chose memoryless or with memory,too. But I've got a question. whether y(t)=1(or any constant)is memoryless or not? - Hetong Li
The definition you showed was very clear and the examples really emphasized well what you were saying. -Eric Smith
