Proof: Do Variables At Unchanged 72

Let's prove the following theorem:

if the following are true:
  • expression state at time 72 = "iterate_args"
  • Variables Map at time 72 = [ entry self: (Python reference 0), [ ] ]

then Variables Map at time 73 = [ entry self: (Python reference 0), [ ] ]

Proof:

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Given
1 expression state at time 72 = "iterate_args"
2 Variables Map at time 72 = [ entry self: (Python reference 0), [ ] ]
Proof Table
# Claim Reason
1 Variables Map at time (72 + 1) = Variables Map at time 72 if expression state at time 72 = "iterate_args", then Variables Map at time (72 + 1) = Variables Map at time 72
2 Variables Map at time (72 + 1) = [ entry self: (Python reference 0), [ ] ] if Variables Map at time (72 + 1) = Variables Map at time 72 and Variables Map at time 72 = [ entry self: (Python reference 0), [ ] ], then Variables Map at time (72 + 1) = [ entry self: (Python reference 0), [ ] ]
3 72 + 1 = 73 72 + 1 = 73
4 Variables Map at time (72 + 1) = Variables Map at time 73 if 72 + 1 = 73, then Variables Map at time (72 + 1) = Variables Map at time 73
5 Variables Map at time 73 = [ entry self: (Python reference 0), [ ] ] if Variables Map at time (72 + 1) = Variables Map at time 73 and Variables Map at time (72 + 1) = [ entry self: (Python reference 0), [ ] ], then Variables Map at time 73 = [ entry self: (Python reference 0), [ ] ]

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