Nuprl Lemma : ses-verify-signer_wf
∀[s:SES]. ∀[es:EO+(Info)]. ∀[e:E(Verify)]. (signer(e) ∈ Id)
Proof
Definitions occuring in Statement :
ses-verify-signer: signer(e),
ses-verify: Verify,
ses-info: Info,
security-event-structure: SES,
es-E-interface: E(X),
event-ordering+: EO+(Info),
Id: Id,
uall: ∀[x:A]. B[x],
member: t ∈ T
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
ses-verify-signer: signer(e),
so_lambda: λ2x y.t[x; y],
subtype_rel: A ⊆r B,
so_apply: x[s1;s2],
es-E-interface: E(X),
uimplies: b supposing a,
all: ∀x:A. B[x],
top: Top,
sq_type: SQType(T),
implies: P ⇒ Q,
guard: {T},
assert: ↑b,
ifthenelse: if b then t else f fi ,
btrue: tt,
true: True,
so_lambda: λ2x.t[x],
so_apply: x[s]
Latex:
\mforall{}[s:SES]. \mforall{}[es:EO+(Info)]. \mforall{}[e:E(Verify)]. (signer(e) \mmember{} Id)
Date html generated:
2016_05_17-AM-11_42_46
Last ObjectModification:
2015_12_29-PM-06_44_16
Theory : event-logic-applications
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