Proof: Do Line At Unchanged 52

Let's prove the following theorem:

if the following are true:

expression state at time 52 = "call_function_begin"
the line at time 52 = 6

then the line at time 53 = 6

Proof:

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Given

1	expression state at time 52 = "call_function_begin"
2	the line at time 52 = 6

Proof Table

#	Claim	Reason
1	the line at time (52 + 1) = the line at time 52	if expression state at time 52 = "call_function_begin", then the line at time (52 + 1) = the line at time 52 (Assign Parent (6))
2	the line at time (52 + 1) = 6	if the line at time (52 + 1) = the line at time 52 and the line at time 52 = 6, then the line at time (52 + 1) = 6 (Transitive Property of Equality)
3	52 + 1 = 53	52 + 1 = 53 (Fixed Value Statement)
4	the line at time (52 + 1) = the line at time 53	if 52 + 1 = 53, then the line at time (52 + 1) = the line at time 53 (Substitution)
5	the line at time 53 = 6	if the line at time (52 + 1) = the line at time 53 and the line at time (52 + 1) = 6, then the line at time 53 = 6 (Transitive Property of Equality Variation 2)

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