Proof: Do Line At Unchanged 40

Let's prove the following theorem:

if the following are true:

expression state at time 40 = "call_function_begin"
the line at time 40 = 4

then the line at time 41 = 4

Proof:

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

Given

1	expression state at time 40 = "call_function_begin"
2	the line at time 40 = 4

Proof Table

#	Claim	Reason
1	the line at time (40 + 1) = the line at time 40	if expression state at time 40 = "call_function_begin", then the line at time (40 + 1) = the line at time 40 (Assign Parent (6))
2	the line at time (40 + 1) = 4	if the line at time (40 + 1) = the line at time 40 and the line at time 40 = 4, then the line at time (40 + 1) = 4 (Transitive Property of Equality)
3	40 + 1 = 41	40 + 1 = 41 (Fixed Value Statement)
4	the line at time (40 + 1) = the line at time 41	if 40 + 1 = 41, then the line at time (40 + 1) = the line at time 41 (Substitution)
5	the line at time 41 = 4	if the line at time (40 + 1) = the line at time 41 and the line at time (40 + 1) = 4, then the line at time 41 = 4 (Transitive Property of Equality Variation 2)

Comments

Please log in to add comments