Proof: Get Iterate Parent 2

Let's prove the following theorem:

if the following are true:
  • expression state at time 2 = "iterate_args"
  • arguments stack at time 2 = [ [ entry "ES": "Estonia", [ entry "MX": "Mexico", [ ] ] ], [ ] ]
  • parent stack at time 2 = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ]

then parent stack at time 3 = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ]

Proof:

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Given
1 expression state at time 2 = "iterate_args"
2 arguments stack at time 2 = [ [ entry "ES": "Estonia", [ entry "MX": "Mexico", [ ] ] ], [ ] ]
3 parent stack at time 2 = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ]
Proof Table
# Claim Reason
1 parent stack at time (2 + 1) = parent stack at time 2 if expression state at time 2 = "iterate_args" and arguments stack at time 2 = [ [ entry "ES": "Estonia", [ entry "MX": "Mexico", [ ] ] ], [ ] ], then parent stack at time (2 + 1) = parent stack at time 2
2 parent stack at time (2 + 1) = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ] if parent stack at time (2 + 1) = parent stack at time 2 and parent stack at time 2 = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ], then parent stack at time (2 + 1) = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ]
3 2 + 1 = 3 2 + 1 = 3
4 parent stack at time (2 + 1) = parent stack at time 3 if 2 + 1 = 3, then parent stack at time (2 + 1) = parent stack at time 3
5 parent stack at time 3 = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ] if parent stack at time (2 + 1) = parent stack at time 3 and parent stack at time (2 + 1) = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ], then parent stack at time 3 = [ {"ES": "Estonia", "MX": "Mexico"}, [ ] ]

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