Proof: Do Tab At Unchanged 77

Let's prove the following theorem:

if the following are true:

expression state at time 77 = "iterate_args"
the tab at time 77 = 2

then the tab at time 78 = 2

Proof:

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Given

1	expression state at time 77 = "iterate_args"
2	the tab at time 77 = 2

Proof Table

#	Claim	Reason
1	the tab at time (77 + 1) = the tab at time 77	if expression state at time 77 = "iterate_args", then the tab at time (77 + 1) = the tab at time 77 (Iterate Insn (4))
2	the tab at time (77 + 1) = 2	if the tab at time (77 + 1) = the tab at time 77 and the tab at time 77 = 2, then the tab at time (77 + 1) = 2 (Transitive Property of Equality)
3	77 + 1 = 78	77 + 1 = 78 (Fixed Value Statement)
4	the tab at time (77 + 1) = the tab at time 78	if 77 + 1 = 78, then the tab at time (77 + 1) = the tab at time 78 (Substitution)
5	the tab at time 78 = 2	if the tab at time (77 + 1) = the tab at time 78 and the tab at time (77 + 1) = 2, then the tab at time 78 = 2 (Transitive Property of Equality Variation 2)

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