Proof: Do Line At Unchanged 50

Let's prove the following theorem:

if the following are true:

expression state at time 50 = "return"
the line at time 50 = 6

then the line at time 51 = 6

Proof:

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

Given

1	expression state at time 50 = "return"
2	the line at time 50 = 6

Proof Table

#	Claim	Reason
1	the line at time (50 + 1) = the line at time 50	if expression state at time 50 = "return", then the line at time (50 + 1) = the line at time 50 (Return (6))
2	the line at time (50 + 1) = 6	if the line at time (50 + 1) = the line at time 50 and the line at time 50 = 6, then the line at time (50 + 1) = 6 (Transitive Property of Equality)
3	50 + 1 = 51	50 + 1 = 51 (Fixed Value Statement)
4	the line at time (50 + 1) = the line at time 51	if 50 + 1 = 51, then the line at time (50 + 1) = the line at time 51 (Substitution)
5	the line at time 51 = 6	if the line at time (50 + 1) = the line at time 51 and the line at time (50 + 1) = 6, then the line at time 51 = 6 (Transitive Property of Equality Variation 2)

Comments

Please log in to add comments