Nuprl Lemma : member-used-atoms
∀s:SES
  (ActionsDisjoint
  
⇒ (∀es:EO+(Info). ∀e:E. ∀a:Atom1.
        ((a ∈ UsedAtoms(e))
        
⇐⇒ ((↑e ∈b Send) ∧ (a ∈ sdata-atoms(Send(e))))
            ∨ ((↑e ∈b Decrypt) ∧ ((a = cipherText(e) ∈ Atom1) ∨ (a ∈ encryption-key-atoms(key(e)))))
            ∨ ((↑e ∈b Verify) ∧ ((a = signature(e) ∈ Atom1) ∨ (a ∈ sdata-atoms(signed(e)))))
            ∨ ((↑e ∈b Sign) ∧ (a ∈ sdata-atoms(signed(e))))
            ∨ ((↑e ∈b Encrypt) ∧ ((a ∈ sdata-atoms(plainText(e))) ∨ (a ∈ encryption-key-atoms(key(e))))))))
Proof
Definitions occuring in Statement : 
ses-used-atoms: UsedAtoms(e)
, 
ses-disjoint: ActionsDisjoint
, 
ses-cipher: cipherText(e)
, 
ses-decryption-key: key(e)
, 
ses-decrypt: Decrypt
, 
ses-encryption-key: key(e)
, 
ses-encrypted: plainText(e)
, 
ses-encrypt: Encrypt
, 
ses-verify-sig: signature(e)
, 
ses-verify-signed: signed(e)
, 
ses-verify: Verify
, 
ses-signed: signed(e)
, 
ses-sign: Sign
, 
ses-send: Send
, 
ses-info: Info
, 
security-event-structure: SES
, 
encryption-key-atoms: encryption-key-atoms(k)
, 
sdata-atoms: sdata-atoms(d)
, 
eclass-val: X(e)
, 
in-eclass: e ∈b X
, 
event-ordering+: EO+(Info)
, 
es-E: E
, 
l_member: (x ∈ l)
, 
atom: Atom$n
, 
assert: ↑b
, 
all: ∀x:A. B[x]
, 
iff: P 
⇐⇒ Q
, 
implies: P 
⇒ Q
, 
or: P ∨ Q
, 
and: P ∧ Q
, 
equal: s = t ∈ T
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
, 
ses-used-atoms: UsedAtoms(e)
, 
ses-disjoint: ActionsDisjoint
, 
member: t ∈ T
, 
exists: ∃x:A. B[x]
, 
and: P ∧ Q
, 
cand: A c∧ B
, 
uall: ∀[x:A]. B[x]
, 
subtype_rel: A ⊆r B
, 
so_lambda: λ2x y.t[x; y]
, 
so_apply: x[s1;s2]
, 
uimplies: b supposing a
, 
top: Top
, 
bool: 𝔹
, 
unit: Unit
, 
it: ⋅
, 
btrue: tt
, 
uiff: uiff(P;Q)
, 
ifthenelse: if b then t else f fi 
, 
assert: ↑b
, 
iff: P 
⇐⇒ Q
, 
or: P ∨ Q
, 
true: True
, 
prop: ℙ
, 
rev_implies: P 
⇐ Q
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
false: False
, 
not: ¬A
, 
es-E-interface: E(X)
, 
bfalse: ff
, 
sq_type: SQType(T)
, 
guard: {T}
, 
bnot: ¬bb
Latex:
\mforall{}s:SES
    (ActionsDisjoint
    {}\mRightarrow{}  (\mforall{}es:EO+(Info).  \mforall{}e:E.  \mforall{}a:Atom1.
                ((a  \mmember{}  UsedAtoms(e))
                \mLeftarrow{}{}\mRightarrow{}  ((\muparrow{}e  \mmember{}\msubb{}  Send)  \mwedge{}  (a  \mmember{}  sdata-atoms(Send(e))))
                        \mvee{}  ((\muparrow{}e  \mmember{}\msubb{}  Decrypt)  \mwedge{}  ((a  =  cipherText(e))  \mvee{}  (a  \mmember{}  encryption-key-atoms(key(e)))))
                        \mvee{}  ((\muparrow{}e  \mmember{}\msubb{}  Verify)  \mwedge{}  ((a  =  signature(e))  \mvee{}  (a  \mmember{}  sdata-atoms(signed(e)))))
                        \mvee{}  ((\muparrow{}e  \mmember{}\msubb{}  Sign)  \mwedge{}  (a  \mmember{}  sdata-atoms(signed(e))))
                        \mvee{}  ((\muparrow{}e  \mmember{}\msubb{}  Encrypt)
                            \mwedge{}  ((a  \mmember{}  sdata-atoms(plainText(e)))  \mvee{}  (a  \mmember{}  encryption-key-atoms(key(e))))))))
Date html generated:
2016_05_17-PM-00_31_47
Last ObjectModification:
2016_01_18-AM-07_43_11
Theory : event-logic-applications
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