Proof: Do Line At Unchanged 27

Let's prove the following theorem:

if the following are true:

expression state at time 27 = "begin_expr"
the line at time 27 = 3

then the line at time 28 = 3

Proof:

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

Given

1	expression state at time 27 = "begin_expr"
2	the line at time 27 = 3

Proof Table

#	Claim	Reason
1	the line at time (27 + 1) = the line at time 27	if expression state at time 27 = "begin_expr", then the line at time (27 + 1) = the line at time 27 (Insn Count Begin Expression (3))
2	the line at time (27 + 1) = 3	if the line at time (27 + 1) = the line at time 27 and the line at time 27 = 3, then the line at time (27 + 1) = 3 (Transitive Property of Equality)
3	27 + 1 = 28	27 + 1 = 28 (Fixed Value Statement)
4	the line at time (27 + 1) = the line at time 28	if 27 + 1 = 28, then the line at time (27 + 1) = the line at time 28 (Substitution)
5	the line at time 28 = 3	if the line at time (27 + 1) = the line at time 28 and the line at time (27 + 1) = 3, then the line at time 28 = 3 (Transitive Property of Equality Variation 2)

Comments

Please log in to add comments