Proof: Get Iterate Expr 10

Let's prove the following theorem:

if the following are true:

expression state at time 10 = "iterate_args"
arguments stack at time 10 = [ [ "John", [ "Smith", [ 25, [ ] ] ] ], [ ] ]

then the expression at time 11 = "John"

Proof:

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Given

1	expression state at time 10 = "iterate_args"
2	arguments stack at time 10 = [ [ "John", [ "Smith", [ 25, [ ] ] ] ], [ ] ]

Proof Table

#	Claim	Reason
1	the expression at time (10 + 1) = "John"	if expression state at time 10 = "iterate_args" and arguments stack at time 10 = [ [ "John", [ "Smith", [ 25, [ ] ] ] ], [ ] ], then the expression at time (10 + 1) = "John" (Iterate Arguments Expression Property)
2	10 + 1 = 11	10 + 1 = 11 (Fixed Value Statement)
3	the expression at time (10 + 1) = the expression at time 11	if 10 + 1 = 11, then the expression at time (10 + 1) = the expression at time 11 (Substitution)
4	the expression at time 11 = "John"	if the expression at time (10 + 1) = the expression at time 11 and the expression at time (10 + 1) = "John", then the expression at time 11 = "John" (Transitive Property of Equality Variation 2)

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