Proof: Do Stack At Unchanged 55

Let's prove the following theorem:

if the following are true:
  • expression state at time 55 = "iterate_args"
  • stack at time 55 = [ ]

then stack at time 56 = [ ]

Proof:

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Given
1 expression state at time 55 = "iterate_args"
2 stack at time 55 = [ ]
Proof Table
# Claim Reason
1 stack at time (55 + 1) = stack at time 55 if expression state at time 55 = "iterate_args", then stack at time (55 + 1) = stack at time 55
2 stack at time (55 + 1) = [ ] if stack at time (55 + 1) = stack at time 55 and stack at time 55 = [ ], then stack at time (55 + 1) = [ ]
3 55 + 1 = 56 55 + 1 = 56
4 stack at time (55 + 1) = stack at time 56 if 55 + 1 = 56, then stack at time (55 + 1) = stack at time 56
5 stack at time 56 = [ ] if stack at time (55 + 1) = stack at time 56 and stack at time (55 + 1) = [ ], then stack at time 56 = [ ]

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