Proof: Byte 126 Stays the Same 22

Let's prove the following theorem:

if the following are true:
  • instruction #22 is addi dst=1 src=1 imm=3
  • the PC at time 22 = 22
  • value of cell 126 at time 22 = 3

then value of cell 126 at time 23 = 3

Proof:

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

Given
1 instruction #22 is addi dst=1 src=1 imm=3
2 the PC at time 22 = 22
3 value of cell 126 at time 22 = 3
Proof Table
# Claim Reason
1 not (126 = 1) not (126 = 1)
2 value of cell 126 at time (22 + 1) = value of cell 126 at time 22 if instruction #22 is addi dst=1 src=1 imm=3 and the PC at time 22 = 22 and not (126 = 1), then value of cell 126 at time (22 + 1) = value of cell 126 at time 22
3 22 + 1 = 23 22 + 1 = 23
4 value of cell 126 at time (22 + 1) = value of cell 126 at time 23 if 22 + 1 = 23, then value of cell 126 at time (22 + 1) = value of cell 126 at time 23
5 value of cell 126 at time 23 = value of cell 126 at time 22 if value of cell 126 at time (22 + 1) = value of cell 126 at time 23 and value of cell 126 at time (22 + 1) = value of cell 126 at time 22, then value of cell 126 at time 23 = value of cell 126 at time 22
6 value of cell 126 at time 23 = 3 if value of cell 126 at time 23 = value of cell 126 at time 22 and value of cell 126 at time 22 = 3, then value of cell 126 at time 23 = 3

Comments

Please log in to add comments