Proof: Write End Decrement If Line26

Let's prove the following theorem:

if the following are true:

the line at time 26 = 7
the tab at time 26 = 1
number of lines = 7 - 1
Control Map at time 26 = [ entry 0: (pair ("if", False)), [ ] ]

then the line at time 27 = 7

Proof:

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Given

1	the line at time 26 = 7
2	the tab at time 26 = 1
3	number of lines = 7 - 1
4	Control Map at time 26 = [ entry 0: (pair ("if", False)), [ ] ]

Proof Table

#	Claim	Reason
1	value at (1 - 1) in map (Control Map at time 26) = pair ("if", False)	if Control Map at time 26 = [ entry 0: (pair ("if", False)), [ ] ], then value at (1 - 1) in map (Control Map at time 26) = pair ("if", False) (Get Decrement Key Value Control Map At 26)
2	the line at time (26 + 1) = 7	if the line at time 26 = 7 and the tab at time 26 = 1 and number of lines = 7 - 1 and value at (1 - 1) in map (Control Map at time 26) = pair ("if", False), then the line at time (26 + 1) = 7 (Decrement Tab At If End (1))
3	26 + 1 = 27	26 + 1 = 27 (Fixed Value Statement)
4	the line at time (26 + 1) = the line at time 27	if 26 + 1 = 27, then the line at time (26 + 1) = the line at time 27 (Substitution)
5	the line at time 27 = 7	if the line at time (26 + 1) = the line at time 27 and the line at time (26 + 1) = 7, then the line at time 27 = 7 (Transitive Property of Equality Variation 2)

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