- Proof: Communative Property for Discrete Time_Old Kiwi
- Proof: Communative Property for Continuous Time_Old Kiwi
- Proof: Distributed Property for Discrete Time_Old Kiwi
- Proof: Distributed Property for Continuous time_Old Kiwi
- Proof: Associative Property for Discrete Time_Old Kiwi
- Proof: Associative Property for Continous Time_Old Kiwi