Step
*
3
of Lemma
ses-flow-axiom-ordering
1. s : SES@i'
2. ActionsDisjoint@i'
3. es : EO+(Info)@i'
4. ∀e1,e2:E. ∀a:Atom1.
(ses-flow(s;es;a;e1;e2)
⇒ ((e1 ≤loc e2 ∧ (e2 has a)) ∨ (∃snd:E(Send). (e1 ≤loc snd ∧ (snd < e2) ∧ snd has* a))))
5. ∀n:E(New). ∀e:E. ((e has New(n))
⇒ ses-flow(s;es;New(n);n;e))@i'
6. ∀e1:E(Encrypt). ∀b:E.
((b has cipherText(e1))
⇒ (∃e2:E(Encrypt)
((Encrypt(e2) = Encrypt(e1) ∈ (SecurityData × Key × Atom1)) ∧ ses-flow(s;es;cipherText(e2);e2;b))))@i'
7. ∀e1:E(Sign). ∀b:E.
((b has signature(e1))
⇒ (∃e2:E(Sign). ((Sign(e2) = Sign(e1) ∈ (SecurityData × Id × Atom1)) ∧ ses-flow(s;es;signature(e2);e2;b))))@i'
8. e1 : E(Sign)@i
9. ∀b:E
((b has signature(e1))
⇒ (∃e2:E(Sign). ((Sign(e2) = Sign(e1) ∈ (SecurityData × Id × Atom1)) ∧ ses-flow(s;es;signature(e2);e2;b))))
10. b : E@i
11. (b has signature(e1))@i
12. e2 : E(Sign)
13. Sign(e2) = Sign(e1) ∈ (SecurityData × Id × Atom1)
14. ses-flow(s;es;signature(e2);e2;b)
15. Sign(e2) = Sign(e1) ∈ (SecurityData × Id × Atom1)
16. snd : E(Send)
17. e2 ≤loc snd
18. (snd < b)
19. snd has* signature(e2)
20. (e2 <loc snd)
21. (snd < b)
⊢ snd has* signature(e1)
BY
{ (NthHypEq (-3) THEN (EqCD THEN Auto) THEN Unfold `ses-sig` 0 THEN EqCD THEN Auto)⋅ }
Latex:
Latex:
1. s : SES@i'
2. ActionsDisjoint@i'
3. es : EO+(Info)@i'
4. \mforall{}e1,e2:E. \mforall{}a:Atom1.
(ses-flow(s;es;a;e1;e2)
{}\mRightarrow{} ((e1 \mleq{}loc e2 \mwedge{} (e2 has a)) \mvee{} (\mexists{}snd:E(Send). (e1 \mleq{}loc snd \mwedge{} (snd < e2) \mwedge{} snd has* a))))
5. \mforall{}n:E(New). \mforall{}e:E. ((e has New(n)) {}\mRightarrow{} ses-flow(s;es;New(n);n;e))@i'
6. \mforall{}e1:E(Encrypt). \mforall{}b:E.
((b has cipherText(e1))
{}\mRightarrow{} (\mexists{}e2:E(Encrypt). ((Encrypt(e2) = Encrypt(e1)) \mwedge{} ses-flow(s;es;cipherText(e2);e2;b))))@i'
7. \mforall{}e1:E(Sign). \mforall{}b:E.
((b has signature(e1))
{}\mRightarrow{} (\mexists{}e2:E(Sign). ((Sign(e2) = Sign(e1)) \mwedge{} ses-flow(s;es;signature(e2);e2;b))))@i'
8. e1 : E(Sign)@i
9. \mforall{}b:E
((b has signature(e1))
{}\mRightarrow{} (\mexists{}e2:E(Sign). ((Sign(e2) = Sign(e1)) \mwedge{} ses-flow(s;es;signature(e2);e2;b))))
10. b : E@i
11. (b has signature(e1))@i
12. e2 : E(Sign)
13. Sign(e2) = Sign(e1)
14. ses-flow(s;es;signature(e2);e2;b)
15. Sign(e2) = Sign(e1)
16. snd : E(Send)
17. e2 \mleq{}loc snd
18. (snd < b)
19. snd has* signature(e2)
20. (e2 <loc snd)
21. (snd < b)
\mvdash{} snd has* signature(e1)
By
Latex:
(NthHypEq (-3) THEN (EqCD THEN Auto) THEN Unfold `ses-sig` 0 THEN EqCD THEN Auto)\mcdot{}
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