Proof: Do Class Defs At Unchanged 7

Let's prove the following theorem:

if the following are true:
  • expression state at time 7 = "begin_expr"
  • Class Map at time 7 = [ ]

then Class Map at time 8 = [ ]

Proof:

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Given
1 expression state at time 7 = "begin_expr"
2 Class Map at time 7 = [ ]
Proof Table
# Claim Reason
1 Class Map at time (7 + 1) = Class Map at time 7 if expression state at time 7 = "begin_expr", then Class Map at time (7 + 1) = Class Map at time 7
2 Class Map at time (7 + 1) = [ ] if Class Map at time (7 + 1) = Class Map at time 7 and Class Map at time 7 = [ ], then Class Map at time (7 + 1) = [ ]
3 7 + 1 = 8 7 + 1 = 8
4 Class Map at time (7 + 1) = Class Map at time 8 if 7 + 1 = 8, then Class Map at time (7 + 1) = Class Map at time 8
5 Class Map at time 8 = [ ] if Class Map at time (7 + 1) = Class Map at time 8 and Class Map at time (7 + 1) = [ ], then Class Map at time 8 = [ ]

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