Proof: Get Iterate Parent 10
Let's prove the following theorem:
if the following are true:
- expression state at time 10 = "iterate_args"
- arguments stack at time 10 = [ [ "John", [ "Smith", [ 25, [ ] ] ] ], [ ] ]
- parent stack at time 10 = [
Person("John", "Smith", 25)
, [ ] ]
then parent stack at time 11 = [ Person("John", "Smith", 25)
, [ ] ]
Proof:
Given
1 | expression state at time 10 = "iterate_args" |
---|---|
2 | arguments stack at time 10 = [ [ "John", [ "Smith", [ 25, [ ] ] ] ], [ ] ] |
3 | parent stack at time 10 = [ Person("John", "Smith", 25) , [ ] ] |
# | Claim | Reason |
---|---|---|
1 | parent stack at time (10 + 1) = parent stack at time 10 | if expression state at time 10 = "iterate_args" and arguments stack at time 10 = [ [ "John", [ "Smith", [ 25, [ ] ] ] ], [ ] ], then parent stack at time (10 + 1) = parent stack at time 10 |
2 | parent stack at time (10 + 1) = [ Person("John", "Smith", 25) , [ ] ] |
if parent stack at time (10 + 1) = parent stack at time 10 and parent stack at time 10 = [ Person("John", "Smith", 25) , [ ] ], then parent stack at time (10 + 1) = [ Person("John", "Smith", 25) , [ ] ] |
3 | 10 + 1 = 11 | 10 + 1 = 11 |
4 | parent stack at time (10 + 1) = parent stack at time 11 | if 10 + 1 = 11, then parent stack at time (10 + 1) = parent stack at time 11 |
5 | parent stack at time 11 = [ Person("John", "Smith", 25) , [ ] ] |
if parent stack at time (10 + 1) = parent stack at time 11 and parent stack at time (10 + 1) = [ Person("John", "Smith", 25) , [ ] ], then parent stack at time 11 = [ Person("John", "Smith", 25) , [ ] ] |
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