Proof: Do Line At Unchanged 26

Let's prove the following theorem:

if the following are true:

expression state at time 26 = "begin_expr"
the line at time 26 = 4

then the line at time 27 = 4

Proof:

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

Given

1	expression state at time 26 = "begin_expr"
2	the line at time 26 = 4

Proof Table

#	Claim	Reason
1	the line at time (26 + 1) = the line at time 26	if expression state at time 26 = "begin_expr", then the line at time (26 + 1) = the line at time 26 (Insn Count Begin Expression (3))
2	the line at time (26 + 1) = 4	if the line at time (26 + 1) = the line at time 26 and the line at time 26 = 4, then the line at time (26 + 1) = 4 (Transitive Property of Equality)
3	26 + 1 = 27	26 + 1 = 27 (Fixed Value Statement)
4	the line at time (26 + 1) = the line at time 27	if 26 + 1 = 27, then the line at time (26 + 1) = the line at time 27 (Substitution)
5	the line at time 27 = 4	if the line at time (26 + 1) = the line at time 27 and the line at time (26 + 1) = 4, then the line at time 27 = 4 (Transitive Property of Equality Variation 2)

Comments

Please log in to add comments