Proof: Get Iterate Expr 18

Let's prove the following theorem:

if the following are true:

expression state at time 18 = "iterate_args"
arguments stack at time 18 = [ [ "Mexico", [ ] ], [ [ ], [ ] ] ]

then the expression at time 19 = "Mexico"

Proof:

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Given

1	expression state at time 18 = "iterate_args"
2	arguments stack at time 18 = [ [ "Mexico", [ ] ], [ [ ], [ ] ] ]

Proof Table

#	Claim	Reason
1	the expression at time (18 + 1) = "Mexico"	if expression state at time 18 = "iterate_args" and arguments stack at time 18 = [ [ "Mexico", [ ] ], [ [ ], [ ] ] ], then the expression at time (18 + 1) = "Mexico" (Iterate Arguments Expression Property)
2	18 + 1 = 19	18 + 1 = 19 (Fixed Value Statement)
3	the expression at time (18 + 1) = the expression at time 19	if 18 + 1 = 19, then the expression at time (18 + 1) = the expression at time 19 (Substitution)
4	the expression at time 19 = "Mexico"	if the expression at time (18 + 1) = the expression at time 19 and the expression at time (18 + 1) = "Mexico", then the expression at time 19 = "Mexico" (Transitive Property of Equality Variation 2)

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