Proof: Write Stmt Class Defs At Unchanged 13

Let's prove the following theorem:

if the following are true:

the line at time 13 = 2
the tab at time 13 = 1
statement at line 2, tab 1 = z = __add__(x, 3)
Class Map at time 13 = [ ]

then Class Map at time 14 = [ ]

Proof:

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Given

1	the line at time 13 = 2
2	the tab at time 13 = 1
3	statement at line 2, tab 1 = `z = __add__(x, 3)`
4	Class Map at time 13 = [ ]

Proof Table

#	Claim	Reason
1	Class Map at time (13 + 1) = Class Map at time 13	if the line at time 13 = 2 and the tab at time 13 = 1 and statement at line 2, tab 1 = `z = __add__(x, 3)`, then Class Map at time (13 + 1) = Class Map at time 13 (Assign If Stack (4))
2	Class Map at time (13 + 1) = [ ]	if Class Map at time (13 + 1) = Class Map at time 13 and Class Map at time 13 = [ ], then Class Map at time (13 + 1) = [ ] (Transitive Property of Equality)
3	13 + 1 = 14	13 + 1 = 14 (Fixed Value Statement)
4	Class Map at time (13 + 1) = Class Map at time 14	if 13 + 1 = 14, then Class Map at time (13 + 1) = Class Map at time 14 (Substitution)
5	Class Map at time 14 = [ ]	if Class Map at time (13 + 1) = Class Map at time 14 and Class Map at time (13 + 1) = [ ], then Class Map at time 14 = [ ] (Transitive Property of Equality Variation 2)

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