Proof: Get Iterate End Expr 72

Let's prove the following theorem:

if the following are true:

expression state at time 72 = "iterate_args"
arguments stack at time 72 = [ [ ], [ ] ]
parent stack at time 72 = [ __mul__(self.age, 12), [ ] ]

then the expression at time 73 = __mul__(self.age, 12)

Proof:

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Given

1	expression state at time 72 = "iterate_args"
2	arguments stack at time 72 = [ [ ], [ ] ]
3	parent stack at time 72 = [ `__mul__(self.age, 12)`, [ ] ]

Proof Table

#	Claim	Reason
1	the expression at time (72 + 1) = `__mul__(self.age, 12)`	if expression state at time 72 = "iterate_args" and arguments stack at time 72 = [ [ ], [ ] ] and parent stack at time 72 = [ `__mul__(self.age, 12)`, [ ] ], then the expression at time (72 + 1) = `__mul__(self.age, 12)` (Iterate Arguments Finished Rule)
2	72 + 1 = 73	72 + 1 = 73 (Fixed Value Statement)
3	the expression at time (72 + 1) = the expression at time 73	if 72 + 1 = 73, then the expression at time (72 + 1) = the expression at time 73 (Substitution)
4	the expression at time 73 = `__mul__(self.age, 12)`	if the expression at time (72 + 1) = the expression at time 73 and the expression at time (72 + 1) = `__mul__(self.age, 12)`, then the expression at time 73 = `__mul__(self.age, 12)` (Transitive Property of Equality Variation 2)

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