Proof: Do Class Defs At Unchanged 13
Let's prove the following theorem:
if the following are true:
- expression state at time 13 = "begin_expr"
- Class Map at time 13 = [ ]
then Class Map at time 14 = [ ]
Proof:
Given
1 | expression state at time 13 = "begin_expr" |
---|---|
2 | Class Map at time 13 = [ ] |
# | Claim | Reason |
---|---|---|
1 | Class Map at time (13 + 1) = Class Map at time 13 | if expression state at time 13 = "begin_expr", then Class Map at time (13 + 1) = Class Map at time 13 |
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) = [ ] |
3 | 13 + 1 = 14 | 13 + 1 = 14 |
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 |
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 = [ ] |
Comments
Please log in to add comments