Proof: Do Line At Unchanged 63

Let's prove the following theorem:

if the following are true:
  • expression state at time 63 = "iterate_args"
  • the line at time 63 = 7

then the line at time 64 = 7

Proof:

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Given
1 expression state at time 63 = "iterate_args"
2 the line at time 63 = 7
Proof Table
# Claim Reason
1 the line at time (63 + 1) = the line at time 63 if expression state at time 63 = "iterate_args", then the line at time (63 + 1) = the line at time 63
2 the line at time (63 + 1) = 7 if the line at time (63 + 1) = the line at time 63 and the line at time 63 = 7, then the line at time (63 + 1) = 7
3 63 + 1 = 64 63 + 1 = 64
4 the line at time (63 + 1) = the line at time 64 if 63 + 1 = 64, then the line at time (63 + 1) = the line at time 64
5 the line at time 64 = 7 if the line at time (63 + 1) = the line at time 64 and the line at time (63 + 1) = 7, then the line at time 64 = 7

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