Proof: Do Control Map At Unchanged 17

Let's prove the following theorem:

if the following are true:
  • expression state at time 17 = "iterate_args"
  • Control Map at time 17 = [ entry 0: (pair ("while", 2)), [ ] ]

then Control Map at time 18 = [ entry 0: (pair ("while", 2)), [ ] ]

Proof:

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Given
1 expression state at time 17 = "iterate_args"
2 Control Map at time 17 = [ entry 0: (pair ("while", 2)), [ ] ]
Proof Table
# Claim Reason
1 Control Map at time (17 + 1) = Control Map at time 17 if expression state at time 17 = "iterate_args", then Control Map at time (17 + 1) = Control Map at time 17
2 Control Map at time (17 + 1) = [ entry 0: (pair ("while", 2)), [ ] ] if Control Map at time (17 + 1) = Control Map at time 17 and Control Map at time 17 = [ entry 0: (pair ("while", 2)), [ ] ], then Control Map at time (17 + 1) = [ entry 0: (pair ("while", 2)), [ ] ]
3 17 + 1 = 18 17 + 1 = 18
4 Control Map at time (17 + 1) = Control Map at time 18 if 17 + 1 = 18, then Control Map at time (17 + 1) = Control Map at time 18
5 Control Map at time 18 = [ entry 0: (pair ("while", 2)), [ ] ] if Control Map at time (17 + 1) = Control Map at time 18 and Control Map at time (17 + 1) = [ entry 0: (pair ("while", 2)), [ ] ], then Control Map at time 18 = [ entry 0: (pair ("while", 2)), [ ] ]

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