Proof: Write Skip Line Tab 9

Let's prove the following theorem:

if the following are true:
  • the line at time 9 = 9
  • the tab at time 9 = 1
  • statement at line 9, tab 2 = self.y = 5

then the tab at time 10 = 1

Proof:

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Given
1 the line at time 9 = 9
2 the tab at time 9 = 1
3 statement at line 9, tab 2 = self.y = 5
Proof Table
# Claim Reason
1 2 > 1 2 > 1
2 the tab at time (9 + 1) = the tab at time 9 if the line at time 9 = 9 and the tab at time 9 = 1 and statement at line 9, tab 2 = self.y = 5 and 2 > 1, then the tab at time (9 + 1) = the tab at time 9
3 the tab at time (9 + 1) = 1 if the tab at time (9 + 1) = the tab at time 9 and the tab at time 9 = 1, then the tab at time (9 + 1) = 1
4 9 + 1 = 10 9 + 1 = 10
5 the tab at time (9 + 1) = the tab at time 10 if 9 + 1 = 10, then the tab at time (9 + 1) = the tab at time 10
6 the tab at time 10 = 1 if the tab at time (9 + 1) = the tab at time 10 and the tab at time (9 + 1) = 1, then the tab at time 10 = 1

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