Proof: Do Stack At Unchanged 34

Let's prove the following theorem:

if the following are true:
  • expression state at time 34 = "call_returned"
  • stack at time 34 = [ ]

then stack at time 35 = [ ]

Proof:

View as a tree | View dependent proofs | Try proving it

Given
1 expression state at time 34 = "call_returned"
2 stack at time 34 = [ ]
Proof Table
# Claim Reason
1 stack at time (34 + 1) = stack at time 34 if expression state at time 34 = "call_returned", then stack at time (34 + 1) = stack at time 34
2 stack at time (34 + 1) = [ ] if stack at time (34 + 1) = stack at time 34 and stack at time 34 = [ ], then stack at time (34 + 1) = [ ]
3 34 + 1 = 35 34 + 1 = 35
4 stack at time (34 + 1) = stack at time 35 if 34 + 1 = 35, then stack at time (34 + 1) = stack at time 35
5 stack at time 35 = [ ] if stack at time (34 + 1) = stack at time 35 and stack at time (34 + 1) = [ ], then stack at time 35 = [ ]

Comments

Please log in to add comments