Proof: Do Line At Unchanged 3

Let's prove the following theorem:

if the following are true:

expression state at time 3 = "begin_expr"
the line at time 3 = 1

then the line at time 4 = 1

Proof:

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

Given

1	expression state at time 3 = "begin_expr"
2	the line at time 3 = 1

Proof Table

#	Claim	Reason
1	the line at time (3 + 1) = the line at time 3	if expression state at time 3 = "begin_expr", then the line at time (3 + 1) = the line at time 3 (Insn Count Begin Expression (3))
2	the line at time (3 + 1) = 1	if the line at time (3 + 1) = the line at time 3 and the line at time 3 = 1, then the line at time (3 + 1) = 1 (Transitive Property of Equality)
3	3 + 1 = 4	3 + 1 = 4 (Fixed Value Statement)
4	the line at time (3 + 1) = the line at time 4	if 3 + 1 = 4, then the line at time (3 + 1) = the line at time 4 (Substitution)
5	the line at time 4 = 1	if the line at time (3 + 1) = the line at time 4 and the line at time (3 + 1) = 1, then the line at time 4 = 1 (Transitive Property of Equality Variation 2)

Comments

Please log in to add comments