Proof: Do Object Store At Unchanged 8

Let's prove the following theorem:

if the following are true:
  • expression state at time 8 = "return"
  • Python Object Store at time 8 = [ ]

then Python Object Store at time 9 = [ ]

Proof:

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Given
1 expression state at time 8 = "return"
2 Python Object Store at time 8 = [ ]
Proof Table
# Claim Reason
1 Python Object Store at time (8 + 1) = Python Object Store at time 8 if expression state at time 8 = "return", then Python Object Store at time (8 + 1) = Python Object Store at time 8
2 Python Object Store at time (8 + 1) = [ ] if Python Object Store at time (8 + 1) = Python Object Store at time 8 and Python Object Store at time 8 = [ ], then Python Object Store at time (8 + 1) = [ ]
3 8 + 1 = 9 8 + 1 = 9
4 Python Object Store at time (8 + 1) = Python Object Store at time 9 if 8 + 1 = 9, then Python Object Store at time (8 + 1) = Python Object Store at time 9
5 Python Object Store at time 9 = [ ] if Python Object Store at time (8 + 1) = Python Object Store at time 9 and Python Object Store at time (8 + 1) = [ ], then Python Object Store at time 9 = [ ]

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