Proof: Get Iterate End Expr 38

Let's prove the following theorem:

if the following are true:

expression state at time 38 = "iterate_args"
arguments stack at time 38 = [ [ ], [ ] ]
parent stack at time 38 = [ __setitem__(locations, "ES", "Spain"), [ ] ]

then the expression at time 39 = __setitem__(locations, "ES", "Spain")

Proof:

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Given

1	expression state at time 38 = "iterate_args"
2	arguments stack at time 38 = [ [ ], [ ] ]
3	parent stack at time 38 = [ `__setitem__(locations, "ES", "Spain")`, [ ] ]

Proof Table

#	Claim	Reason
1	the expression at time (38 + 1) = `__setitem__(locations, "ES", "Spain")`	if expression state at time 38 = "iterate_args" and arguments stack at time 38 = [ [ ], [ ] ] and parent stack at time 38 = [ `__setitem__(locations, "ES", "Spain")`, [ ] ], then the expression at time (38 + 1) = `__setitem__(locations, "ES", "Spain")` (Iterate Arguments Finished Rule)
2	38 + 1 = 39	38 + 1 = 39 (Fixed Value Statement)
3	the expression at time (38 + 1) = the expression at time 39	if 38 + 1 = 39, then the expression at time (38 + 1) = the expression at time 39 (Substitution)
4	the expression at time 39 = `__setitem__(locations, "ES", "Spain")`	if the expression at time (38 + 1) = the expression at time 39 and the expression at time (38 + 1) = `__setitem__(locations, "ES", "Spain")`, then the expression at time 39 = `__setitem__(locations, "ES", "Spain")` (Transitive Property of Equality Variation 2)

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