Proof: Do Variables At Unchanged 60

Let's prove the following theorem:

if the following are true:
  • expression state at time 60 = "iterate_args"
  • Variables Map at time 60 = [ entry self: (Python reference 0), [ ] ]

then Variables Map at time 61 = [ entry self: (Python reference 0), [ ] ]

Proof:

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Given
1 expression state at time 60 = "iterate_args"
2 Variables Map at time 60 = [ entry self: (Python reference 0), [ ] ]
Proof Table
# Claim Reason
1 Variables Map at time (60 + 1) = Variables Map at time 60 if expression state at time 60 = "iterate_args", then Variables Map at time (60 + 1) = Variables Map at time 60
2 Variables Map at time (60 + 1) = [ entry self: (Python reference 0), [ ] ] if Variables Map at time (60 + 1) = Variables Map at time 60 and Variables Map at time 60 = [ entry self: (Python reference 0), [ ] ], then Variables Map at time (60 + 1) = [ entry self: (Python reference 0), [ ] ]
3 60 + 1 = 61 60 + 1 = 61
4 Variables Map at time (60 + 1) = Variables Map at time 61 if 60 + 1 = 61, then Variables Map at time (60 + 1) = Variables Map at time 61
5 Variables Map at time 61 = [ entry self: (Python reference 0), [ ] ] if Variables Map at time (60 + 1) = Variables Map at time 61 and Variables Map at time (60 + 1) = [ entry self: (Python reference 0), [ ] ], then Variables Map at time 61 = [ entry self: (Python reference 0), [ ] ]

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