Proof: Do Class Defs At Unchanged 49
Let's prove the following theorem:
if the following are true:
- expression state at time 49 = "iterate_args"
- Class Map at time 49 = [ ]
then Class Map at time 50 = [ ]
Proof:
Given
1 | expression state at time 49 = "iterate_args" |
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2 | Class Map at time 49 = [ ] |
# | Claim | Reason |
---|---|---|
1 | Class Map at time (49 + 1) = Class Map at time 49 | if expression state at time 49 = "iterate_args", then Class Map at time (49 + 1) = Class Map at time 49 |
2 | Class Map at time (49 + 1) = [ ] | if Class Map at time (49 + 1) = Class Map at time 49 and Class Map at time 49 = [ ], then Class Map at time (49 + 1) = [ ] |
3 | 49 + 1 = 50 | 49 + 1 = 50 |
4 | Class Map at time (49 + 1) = Class Map at time 50 | if 49 + 1 = 50, then Class Map at time (49 + 1) = Class Map at time 50 |
5 | Class Map at time 50 = [ ] | if Class Map at time (49 + 1) = Class Map at time 50 and Class Map at time (49 + 1) = [ ], then Class Map at time 50 = [ ] |
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